I don't know much about Polish metal, but I do know that Poland unfortunately has a pretty big neo-Nazi problem. It could have to do with communism, since fascism is pretty much the antithesis of communism. Same with eastern Germany, which of course borders on Poland - the last time I was in Germany, my friends and I had a run-in with nazis on a train between Prague and Berlin. Scary. And of course I'm not saying that all Poles or Germans are nazis, so please don't take offense.