I genuinely don’t know if this interview with Marc Andreessen is a parody or the real thing (apparently it is the real thing), but you should read it nevertheless.
Henrich describes in his book how some people (us) are culturally WEIRD — Western, Educated, Industrialized, Rich, and Democratic — but most people in the world aren’t. Yet.
I find this thesis enormously compelling and largely optimistic. I predict that we — the West — are going to WEIRDify the entire world, within the next 50 years, the next two generations. We will do this not by converting non-WEIRD people to WEIRD, but by getting their kids. Their kids, and their kids’ kids, are going to grow up on the Internet at least as much as they grow up in the real world, and the pull of WEIRD culture will overwhelm all existing non-WEIRD cultures. I realize this is a very strong claim, but this process is already underway; at this point I think it’s inevitable. The cost of this will be a collapse of global cultural diversity exactly as you and Rozin predict.