I'm not sure which happy, anti-social countries you are referring to.

"It may turn out that people aren’t hanging out at bars, but at home." I understand that entertaining at home has been in decline over the last few decades, and is at or near an all time low. Putnam discusses this in Bowling Alone, and all research I've seen lines up with that.

My belief is that most people agree that the decline of community is a problem (I'll cite the Surgeon General's report, for example). I'm open to reconsidering my position if you have sources for the opposing viewpoint.