Do people honestly think Americans don't have rich social lives? Just because we socialize differently doesn't mean it isn't rich. Most Americans seem to prefer church groups, and small friend and family gatherings at their homes rather than going out and mingling in urban entertainment districts and bars.
I'm an American and it definitely seems like we are in a significant and worsening loneliness crisis. I have no idea to what degree any of it is unique to Americans. Social connectedness, socialization rates, and companionship have all been declining for quite a while now. Lot's of potential causes and theories about it. [1] is a decent overview.
Like personally I'm doing great, and so are a lot of people I know, and I'm sure you as well. But I think a lot of Americans are struggling badly with their social lives.
I don't particularly want to gatekeep "Rust fans who just want to write lots of Rust" off OTP. Let them have Gleam. Maybe they'll figure out how to lifetime-annotate binaries?