Uh, livestreams are awful for developing shared communities relative to bars and other physical social spaces. Much of human communication is sub-verbal, and that kind of communication is necessary for forming trusted long term bonds.

Also, excluding people is nowhere near the worst sin in social spaces. Excluding people who don’t share common interests or cultural context often improves the quality of socializing. Hanging out with my friends that I’ve known for 20 years produces much more fruitful conversations than hanging out with my friends plus a dozen strangers competing for my attention.