...You are right, there are ultra-right nationalists in different countries of Europe, and I think in Russia too. But usually these are all sorts of hooligans, drug addicts and freaks, but in Ukraine it is an open mainstream and a unifying national idea.
In the U.S., this fodder has been sucked into the so-called ANTIFA and BLM for the most part leaving few left-overs for the ultra-right to use.