> Our lopsided emphasis on individualism

This reads like that pattern where people assign blame for all issues to whatever thing they happen to not like. The US is the least individualistic it has ever been, but there was much more community and less loneliness in the past. That make it pretty obvious that the issue here isn't "individualism".

I am not from the US but your observation, if correct, would offer a counterexample worth thinking about.

You are saying that in the past, more resources were spent supporting individuals than the resources spent supporting communities and yet communities were stronger. That sure would be an interesting thing to understand if true. My interest is certainly piqued, seems too good to be true though.