Yes that's true. Everyone gets to interact with people that are closer to their ideals but it makes society less homogeneous and disconnected locally because there is no geographical grouping.

At the same time people are more mobile than ever because of technological, opportunity and work reasons as well. So, there is a lack of real grounding. Why bother being friends with your neighbors or local people when you can just travel for not very long and visit people you prefer?

It leads to tensions because people live close together but have a very different way of life and sometimes radically different values, even in close quater communities. They end up hating each other secretly because without communication you cannot even begin to empathise.

The social media groups reflect that; they are an echo chamber to cry about people and behaviors you don't like and reinforce your own opinions, behaviors and their superior validity.

There is also the part where large government of the providence state are to be blamed for favoring rampant individualism. Instead of having to deal with friends and family you deal with soulless corporation and obtuse bureaucracy to get your needs met.

When 50 years ago you could drop by to see your doctor, now you call a number, a robot answers and gives you an appointment in one month. It's not just social media that is to blame it's just technology in general that has allowed and basically created a massive bureaucracy for everything, pretending to focus on making things efficient when it basically only consumes value and is just a means of control/surveillance.