The US and EU switch electoral systems

[Zuza]

I think European countries are still too different from each other, with different issues being salient, so it's very hard to say how people would vote. But, probably, we can assume that Nordic countries would be the bluest (using the most common American color scheme, where blue means left-wing and red means right-wing). France and the Netherlands likely would be blue too. Eastern Europe probably would be red; currently Poland and Hungary seem to be the most right-wing in Europe, though I'm not sure if it is an established political tradition or a mere fluctuation (Poland had social democratic President only slightly more than 10 years ago). But at least on most social and cultural issues Eastern Europe tend to be more conservative.

In the USA anti-immigration far-right probably won't be as strong, but at the same time paleocons and radical Christians would be much stronger, and they would be probably part of the same far-right party as anti-immigration activists so overall far-right could be even stronger than in Europe.