IDK how it is in other EU countries, but before we had same sex marriage, we had registered partnerships, with all the same legal rights and benefits as marriage. The only difference was that it wasn't called a marriage. Now it's called marriage also for same sex couples, so that last tiny difference is finally gone.
Does that reflect same sex partnerships in USA? Like visits to hospitals that require marriage was NEVER an issue here. Is that still discriminated against in USA, just to harass a minority?
Most of Europe is somewhere between liberal and conservative, just like the US.
The main differences are that in Europe, social democracy is more established than in the US (i.e. Bernie Sanders Democrats actually hold seats here), but also that in the US, the younger generation is much more left than Europe. (i.e. Bernie Sanders would top the under 30 polls in the US, but he would not become prime minister in Sweden, as the coalition in power in sweden right now is actually further right than Biden.)
That's interesting, perhaps as a reaction to having so many far-right people in power in the US lately?
The younger generation is also more left here in Europe.
It's possible, Bush and his consequences had a very strong impact on the psyche of millenials and Gen Z. There are a lot of factors that could lead a generation to sway one way or another on the political scale, and Im not sure what strong theories political scientists have on it.