I agree that party affiliation is not a barometer of good character or malevolent nature.
What probably makes the country work (although this theory clearly didn't apply in New York City recently) is the fact that most people are not ideologues. Interestingly enough of all the last four Republican presidents, only Trump was a non ideologue. He has never been comfortable with thinking in terms of left versus right. For him, there's no time for that nonsense in business.

There were more conservative ideologues during the Rush Limbaugh years, where his top rated radio show and his New York Times Bestseller's list books dominated the airwaves and pop culture. Today, the Republican party is probably the only real independents out there. Ideologically, Republicans are all over the map. They can't agree on lunch. And they represent most of America.

Maybe 20 years ago, a Republican platform might have been considered conservative or even right wing. Today, with that minority of far left wing goose stepping Democrats moving further and further to the left, everything not Democrat is considered centrist.

In a lot of ways, Trump is the most Centrist president of all time. (Last president who was that centrist was Richard Nixon, although Nixon had a LIBERAL track record that goose steppers like Obama and Biden would envy.)

I don't automatically choose to unfriend a person based on politics. Probably that's the worst thing that could be done. I don't expect a lot of people to do the intensive research into economics and sociology that I've done for the past 40 years. Most people I know aren't even in their forties.