The Middle East is a total mess, and much of it in flames. Does that tell you something. When they destroy each other long enough, natural selection really comes into play as to who is the most fit.
No; that has a supernatural cause. Just like the anti-family movements in so-called “Western” society.
When the world faces a time where all physical life can be annihilated, what is “nature” selecting? Remember that the “nature” of “natural selection” comes from the old pagan “earth goddesses” and such.