Well for that matter a healthy majority of Europeans would pick Biden over Trump, and a clear majority of European Americans voted Trump over Biden.
I actually find the reverse weirder?
I'll bet the majority of European-born Americans voted for Trump as well. Of course many of them are old and immigrated to the US decades ago.
Or perhaps maybe since Canada and US are quite similar, European immigrants decide partially on ideology. The more liberal minded move to Canada, the more conservative minded move to US.
Anecdotally, most of the European-born Americans I've met have been very liberal in the US context.
Of course, we're now going to have a Ukrainian-born Republican in Congress.