I urge you to consider that this attitude is the very problem under discussion.
Personally, I find it obvious that Republicans have crossed that line. Maybe they will come back, maybe not.
This also doesn't mean, one shouldn't try to discuss or interact with them, but be wary of what the reality is.
And many Republicans "find it obvious" that the Democrats are going to destroy the USA by supporting insert whatever Republicans are angry about today. Gay Rights, or something
As Objectively Correct you think you are, they think they are equally Objectively Correct. You are being equally dismissive of them as they are of you, and therefore you are also part of the problem.
Seeing their side doesn't mean you are obligated to COMPROMISE with them, but as long as you are dismissing them outright as having "crossed a line", you're just as extreme as they are.
I think me, labeling one side extreme, implied they should be ignored or shunned etc. This is not the case. I only labeled them extreme.
Republicans have just inherited a bunch of low-information voters in the Midwest that used to vote Democrat, and have kind of lost control of them. The one’s going on about Diebold machines and whatnot in 2004. I’ve had a bunch of weird ass conversations with Joe Rogan type democrats over the years. The lengths establishment republicans have to go to appease them are disconcerting. But Trump voters remind me a lot of the “common people” back in my home country of Bangladesh, not anything novel.
By contrast, the ideologies that have taken hold among progressive elite democrats are alarming precisely because of who has embraced those ideas. This happened at my law school, for example: https://www.washingtonexaminer.com/news/northwestern-univers.... These are people with influence and power who can actually change society, and we can’t vote for them or anything! They want to run a large scale experiment on American culture, and unlike some unemployed veteran, they have the resources and positions to make those changes whether they rest of us like it or not. That’s way scarier.