In my experience it’s not because there’s lack of attempts to get people together
When given the option between: socializing with people in a shared space and being at home and entertaining yourself people are consciously choosing the latter.
When I ask why, this is what I hear from other people the most:
-I don’t have time
-I don’t have transportation
-Who else is going to be there
Etc…
There seems to be a genuine lack of desire whatsoever to simply get yourself to a place where there is a free event.
And to be clear this is not just talking about one particular type of event
I just went to a Democratic socialist of America event this weekend in support of Gaza, and the amount of people who showed up compared to the number of people who are on the list (even the organizing list) is some vanishingly small group.
If the plurality of individuals don’t want to join groups in person because they feel satisfied by themselves, then that’s a signal of some kind.