The "continuous wars" is a weird comment. Unless you mean internet flame wars, because if "globalization" subsides real wars will happen more often. We kind of see it already as more and more people start leaning right heavily. Small communities breed radicalization.

They can have a positive impact, but only if you can choose one from a global network of said communities as an adult and you don't treat it very seriously (you leave when it becomes toxic). As a person born in a small village community... let's say I don't miss a single fucking thing.