Well, he DOES have a good point, in the sense that we are way too much people on this planet right now and it will become very unsustainable very soon.
Accordng to Greenpeace and hippies.
Secondly, society goes pretty much AGAINST evolution right now by constantly protecting people, protecting the weak. It is not mostly the strongs who survives now. The lower your IQ the more you reproduce (there are countless studies on that, thats just the way it is sorry) and society is going with that.
No, that's the movie Idiocracy.
Hence sometimes I wonder if a massive catastrophe would not do us good in the long run, because the way we are heading right now, we for sure, won't be the dominant specie in a couple of millenias.
You are presuming that our best and brightest would survive. Unfortunately, it's more likely that the stupidest will be the only survivors.