Most models have the population capping at ~10B, so people don't tend to worry about it any more? (10B number is recalled from "Factfulness", which I'd recommend)
Seconded on recommending factfulness. It's been very helpful to me in seeing the world more the way it is rather than in the negative light you'd get from watching sensational media only.
I actually made a preview of iirc ~10 pages that I found to be very powerful near the beginning of the book, but I don't just want to post it to avoid copyright issues. Shoot me an email at factfulness202012@lgms.nl (just link this comment in the subject or so, no body needed) if you are interested.
My concern is mainly an ecological one, which I don't recall Factfulness really addressing. While human welfare continues to improve in most of the world, our sustainable use of natural resources does not, reducing our access to fertile land and fresh water in years to come. I hope technology can get us out of the giant pickle coming our way because I don't put much faith in our long term planning at a national or global level.
