Not everybody is from the US, a country which appears to be culturally split in two (in reality it is probably three, with one third that can't be bothered to care).
Where I am from it is totally normal that one of your friends is left of you on the issue of housing while having a greens position on energy and being slightly conservative on migration. So instead of tribal symbolic ideas (party lines) you discuss the actual ideas and their merits.
Ideas can be discussed best when you detach them from those proposing them. It is better to let ideas die than people. If you judge people on how strong they tow the party line the only ones losing are the voters as they throw away their agency.
America is split into far more than two parts. It's thousands of peoples pressed into a single space with the illusion of peace enforced by violence. The entire concept of a unifying culture is preposterous.
The partisan lens doesn't seem to offer any benefit to most people.
I don't have any hope for europe, either. They seem equally divorced from the material.