I am probably just going to get buried but I don't think this is a simple as many people will think it is.

To me this is another indication of how excessively polarized worldviews are. And I think it goes for quite a lot of people on both sides of the political spectrum. There is a strong tendency towards one political extreme or another.

It's to the point where people are basically living in alternate realities from each other.

And some people may react to that with "yeah, it's one worldview that is intolerant and wrong and one that isn't" or if they are from the other side "yeah, it's one worldview where it's ok to be say you are white and another where it isn't". But it's way more than that. The hint of intolerance (or on the other side, political correctness) is used to identify people as being in the enemy camp. And it is then a proxy for their worth as a human being and all of the other beliefs they might supposedly have are grouped together.

I wonder if another political operating mode is possible.