They obviously don’t believe the same things, that’s the core of the atrocities the person is referring to. Some other group is clearly deluded, they’re less than us, their beliefs are evil, those beliefs are dangerous, etc, makes it a lot easier to hurt them. It seems pretty clear that a lot of people on both sides are going in that direction about the other, and that’s probably the most dangerous thing going on in the US today, and by extension, it’s one of the most dangerous things for the safety of the world, thanks to the ridiculously huge nuclear weapon stockpiles the US has. A US civil war would have a decent chance of being global-civilization-ending.

It’s incredibly important that we learn to come together again, compromise, and not just demand our own way.