Maybe I’m weird, and I am open to that as a possibility, but I don’t see low birthrates as a problem. I feel like the human race could actually benefit from a reduced population. If the population was to reduce by half or more because people did not want to procreate and did so voluntarily and of their own free will, many of our climate change issues would be reduced and might even reverse without changing anything else.

Unless and until the human population gets down to two billion or less, there is little to no danger of a non-man made disaster wiping us out.