As the Earth was created, God set Man (Adam) to keep dominion
over it. This setting was irrevocable, as God did not change His mind
when Adam and Eve sinned by eating from the forbidden tree of the
knowledge of good and evil, by Eve being enticed by the Serpent
and she also gave Adam to eat.

This is a well-known story of the "Paradise Lost".

This incurred the first "loss of containment": Adam had lost his
connection with the God Creator and realised that he is no longer
protected by his faith in Him, but completely unprotected and naked.

From this point on, it seems that more things have gone wrong.
The Scriptures witness that the natural order was broken and twisted
when mankind sin:

Jeremiah 5:25
Your iniquities have turned away these things, and your sins have
withholden good things from you.

Eventually, sin can lead to the very end of the human race as we
know it. How?

In many ways, too many to mention - but we will limit ourselves
to that which is already written.

I will mention just the possibility of incest and inbreeding, which
would reduce biodiversity and amplify genetic diseases, including
the very metabolic disorders: when procreating sexually, there are
odds that the defective metabolic gene will be suppressed by the
dominant ancestor's healthy gene - but in the case of incest
(inbreeding between close relatives) this advantage is lost, and the
likelihood of having the same broken copy rises sharply.

This is just the genetical downside of incestuous relationship, not
even mentioning its effect on authority of parent and the cosmic
order of things.

In particulate, communists in Socialist Yugoslavia demanded that
the working class and farmers not only believe in the Party but
virtually "sell to them". This did not look off in the beginning but
later started to look like a full pact with the Devil, mostly out of
unbelief and the basic fear of death.

WIsdom 1:16
16 In spite of this, the ungodly called out to death by what they did
and said. Thinking that death was their friend, they lost their resolve
and made a treaty with death. Let them have each other: death
and the ungodly belong together!

Those men who have sold have lost their fertility or would have
"black offspring" (or dark offspring, to be more politically correct).
The females naturally reacted in majority - and started the telekinetic
male seed theft. This however had a consequence of the "collectivisation
of fatherhood", and no one later knew who was his real biological father,
as telekinetically stolen seed could have come from everywhere
(the Zulu tribe in Africa called such children "shaka": "conceived by
the wind", hence the legend of Shaka Zulu.)

This phenomenon further increases the likelihood that someone
would unwittingly mate with his half-sister or daughter, or that
daughters would steal the seed from their real fathers and beget
children thereof.

This obvious degeneracy must not be dealt with by some form of purge,
or witchhunt, for "plucking the tare" usually ends up reaping out
less resistant wheat.

This looks odd now perhaps, but as the faith in God Creator withers,
the containment of created elements also locally fades - this in the
end enables the impregnation and incubation of women and girls
by animals, demons, or even machines!

(This is not unheard of and is kept in memory by the Greek legends
of Minotaur, man-bull, or Perseus, man-horse.)

Apart from the very elements losing containment locally, or in the whole
Universe:

Matthew 25:24
Immediately after the tribulation of those days shall the sun be darkened,
and the moon shall not give her light, and the stars shall fall from heaven,
and the powers of the heavens shall be shaken.

Men without God will invariably be seduced by their own incestuous
daughters and their very existence will be degraded, first morally,
then also the increase of physical deformities will arise.

Moral and genetic decay from incest was universally feared as an
archetype ever since the dawn of men and the first community: the
strict ban on incest existed in Aboriginal ancient customs already.

Some regimes tried to deal with this phenomenon in the Weimar Republic
by the repression: steriliation and euthanasia of the mentally ill, or otherwise
disabled individuals. However, there is no proof that the average German
is nowadays healthier on that account. In particular, there is no statistical
proof that mental illness decreased in incidence.

The cause here is deeper, spiritual.

As Man is created to rule over the creation on Earth (Genesis 1:26),
the Devil attacks men as they are the intercessor for the power of
God to show on Earth. Satan wants to eradicate this completely,
but he will not succeed because the tribulation will be stopped
sooner for the sake of the righteous and the elect believers.

But the population that accepts Mark of the Beast 666 have
denied God for good and have no forgiveness. Angels will not
come loving to them, but with bowls of God's Wrath (Revelation 16:1).

It is unclear how far will the grace of God extend, or no flesh would
survive, but God promised to save everyone who calls on
the Name of the LORD shall be saved:

Joel 2:32 (compare Romans 10:13):
And it shall come to pass, that whosoever shall call on
the name of the LORD shall be delivered: for in mount Zion
and in Jerusalem shall be deliverance, as the LORD hath said,
and in the remnant whom the LORD shall call.

What does it mean to call on the Name of the LORD? Does it mean to learn
the Holy Bible by heart?

No, it is sufficient to deny Satan the Devil and accept the Lord Jesus
as Saviour, like in this prayer:

Dear God Creator,
I deny Satan and his power of death and sin.
I call you to be my LORD and Saviour.
I regret my sins and mistakes, and I would want to make
Lord Jesus to be my Saviour and Teacher and Master.
in Jesus name
Amen

As this meditation is finished with a prayer for salvation, it was surely not
a call for something resembling "the final solution on incest".

While there are scientific evidences that this is a serious malady and sin:

"A group of 161 children from incestuous matings has been examined and
compared with 95 of their half-sibs. The parental age distribution showed
considerable differences between the groups, and the period of observation
was longer in children of incestuous origin The educational level of the parents
was below average; 20 of the 141 mothers were mentally retarded. Information
about the fathers was less complete in both groups, but 8 of 138 fathers in the
consanguineous group were known to be mentally subnormal. Prenatal,
neonatal and infant mortality was higher among children from incestuous
unions, and mental retardation as well as congenital malformations, single
and multiple, were far more frequent among these children than among
their half-sibs who were offspring of unrelated parents."

This is an abstract from a medical scientific paper.

However, this doesn't mean that such children should be prevented from birth
by abortion, that is killing the unborn child, or killing the already born ones.
Such as children of rape, they can have worthwhile lives, and under the holiness
of life principle their lives are worthwhile and precious.

Moreover, they have not yet done good nor evil as being conceived, and the
sin is of their parents, just as some children conceived by rape achieved remarkable
achievements for mankind.

This example shows even some saints, and a Pope of Rome, have been conceived
in incest: https://www.toptenz.net/10-notable-people-who-were-the-product-of-incest.php

"Also known as either Gregory I or Gregory the Great, he was Pope of the Catholic Church
from 590 to 604. According to the 14th century document the Gesta Romanorum, he was
conceived by two of the children of Emperor Marcus around 540 AD, and was abandoned
by his naturally ashamed parents near the sea. He was found by fishermen and delivered
to the local monastery. It was after he grew up that he found tablets that informed him
about the truth about his origins.

Gregory’s legend might seem like it was some sort of slander, or maybe anti-church
propaganda. But in the story, as soon as he learned about it, he traveled to the Holy Land
as an attempt to cleanse the sin of his disgraceful origins, including living in poverty on
a coastal rock for 17 years. It would be his extreme piety that would lead to his assent
to the role of pope. Fittingly, he was able to provide absolution to his mother. "

This is the Pope prior to the Great Church Schism. This only proves that God's ways are
unsearchable, and while there are bad apples here, God was always willing to spare Sodom
for the sake of ten righteous men.

the little bear

in the LORD
Amen