@nep
I am sorry, but I still disagree.
Just, because natural adaptations to environment do happen, doesn't mean we should just give up. In fact, I would argue the oposite. We owe it to our kids to make sure they do not get bad genes.
And modern medicine makes this much worse. Since, we can support much more sick people, this is literally unsustainable process, because every sick person who does manage to reproduce thanks to insane drugs will have even sicker kids who will need even more drugs to survive.
I'm simply saying that 'good genes' is silly. 99.99% of everyones genes are totally fine, and instead of some weird ethnic cleansing thing happening, what really needs to happen is people need to cut cigarettes, cut most alcohol (all would be best), and watch their diet. Do those and we'd be in better shape then any point in human history. No reproductive evolution, blah blah shit needed