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There’s for sure some of that conflation happening, but I don’t think it can be ascribed to any particular group, it’s just a bad habit/process a lot of people use regardless of where they’re from. I don’t have a solution for that, and I doubt it’s something you can correct on an online social media platform.
Assholes will be assholes, we don’t need to put them in an American or euro or whatever else case to recognize them as such and deal with them.
You might just not hang out in the right places to see it, but anywhere there’s a European political community, you will see plenty of shit talk and hate and blame being thrown around, especially towards the bigger euro countries like Germany, France and the UK (though not limited to).
I’m not saying there isn’t a good explanation as to why you might have been condescending, or that you are a dumb proud maga American, or anything of the sort, but keep in mind that we can’t guess what you might be thinking, all we have to go on is what you write and some of it that I highlighted does make you look a certain way.