You would be surprised how little in common you can have with your neighbors. You likely don’t shop at the same places, don’t frequent the same restaurants, bars, parks, etc.

It’s not even politics related, people just don’t like the same activities. Some people cook, some people eat out, some people buy in bulk, some people hit farmers markets.

Easy transportation, internet shopping, etc make it trivial to have zero overlap with your neighbor’s day to day, regardless of city or suburb.