We should be open-minded, but not so open-minded that our brain falls out. - Richard Dawkins

Natural selection builds child brains with a tendency to believe whatever their parents and tribal elders tell them. Such trusting obedience is valuable for survival: the analogue of steering by the moon for a moth. But the flip side of trusting obedience is slavish gullibility. The inevitable by-product is vulnerability to infection by mind viruses. (p. 176)

... the genetic code is in fact literally identical in all animals, plants and bacteria ... All earthly living things are certainly descended from a single ancestor.

But you cannot have an unnatural welfare state, unless you also have unnatural birth control, otherwise the end result will be misery even greater than that which obtains in nature.