The thing to remember is that it actually was the Austrians who were the worst of the Nazis, even moreso than the Germans. And yet Austria seems to get a pass. Even before the Anschluss, the German Nazis had to tell the Austrian Nazis to tone it down a bit.
Austria was the birthplace of Adolf Hitler and of national socialism. It began as an inferiority complex and resentment at being left out of Bismarck's Kleindeutschland. The Austrians felt they had to prove they were more German than any German.