I don't think it's worse than Midwest vs the coasts or Republican vs Democrat.

In the us these groups have just stopped talking to each other. The only time that happens is over Thanksgiving and that's when it stops for some of those conversations.

At least in Europe the split is usually not within families...

Are you referring to the time when the world Cup is going on? In that case, absolutely. We all turn into monkeys climbing onto our own rock lol