/r/childfree is still a useful place for people to gain some perspective - that there are actually people who never want kids and have mostly good, personal reasons for this. Not everyone cares about the fact that other countries will likely dominate in the future. Hey, good for them.

For individuals who weigh the risks and rewards in our society it is easy to make the judgement having kids does not make sense. A lot of things we do in modern society is that individuals value their own welfare more than the welfare of the group, and are unwilling to sacrifice in exchange for the group's future prosperity. I refuse to be a disposable slave. I value my time and my life, and I am worth more long term by not taking what seems to me as stupid risks.