There's humanism, but it didn't take off. I don't know if this analysis even gets to the root of ... the alleged problem. I mean, OK, lets say (other) people are miserably lonely and need to join some kind of club: they won't do that anyway, even if it's a church-like club that promises to tell them what life's all about. Possibly people already form communities as much as they honestly want to.
But people used to join those kinds of clubs at much higher frequency. Sp it’s not impossible for that behavior to change.