Americans (appear) to hate one another so much (whenever political issues come up) for one simple reason: Their 2-Party system. They have been affected by it from the very earliest age, and it sets them at each other's throats and permanently divides them against one another.

This is also true in many other countries, but it seems to be particularly bad in the USA where there is no effective third or fourth party to dilute the focus a little.

It's like the Crips and the Bloods. An eternal rivalry of two huge partisan gangs who detest each other, hold each other in contempt, are out to destroy each other (politically speaking). They each live determined to vanquish the other utterly, they each assume that the other represents all kinds of evil and corrupt forces, and they are virtually incapable of getting along with one another when they discuss politics.

I've seen that happen in other societies too, but I've never seen it so bad as it is now in the USA.

Solutions? Yeah, I have a solution that works for me. I don't live in the USA. Another good solution (if you do live there) would be to talk about music or gardening or something instead of politics....if you want to enjoy yourself, I mean.