The country being so politically polarized isn't helping. It's to the point where most only want to socialize with people in the same "tribe". For better or worse.
Perhaps, but it may also help that person realize there are normal people in real life who don't share those ideas, despite being told that anyone they disagree with is a horrible person.
The bottom line is you cannot use logic to convince people their religious beliefs are wrong. Most rational people already know this about religions and religious people, the problem is they don't realize that right-wing politics (or any extremist politics for that matter) is also a religion.
Now before you try to argue that this only applies to the extremists, the problem in this country is that the entire right wing in this country is extremist. The only non-extremist position in this country is the mainstream Democratic party, which is basically center-right. The Republicans have gone full-on hard-right, so there's just no reasoning with anyone that buys into that stuff.
You can, but only if they are peripheral rather than fundamental beliefs, and your chain of logic starts with their fundamental beliefs. Well, at least as much as you can use logic to convince anyone of anything.
The problem (well, a problem) is that you can't easily discern, from the outside, a peripheral belief that depends on fundamental beliefs from a fundamental belief which is rationalized in terms of other fundamental beliefs (though circularity of support between beliefs is a pretty good sign that all are fundamental and the support is mere rationalization.)
There were 62,984,828 "deplorables" that voted for Trump in the last election. You're willing to paint with such a broad brush that you shun the 46.1% of the country who voted for Trump?
TL;DR: exit the media circuses and connect on a human level.
/grump