This is an undated Czech cartoon, but it's from the beginning of the Reich. This is what actual suppression of dissent looks like. Patrick Leahy should have this taped to his "Little House on the Prairie" lunchbox.

I don't think it's any coincidence that Hitler's eastern neighbors picked up on him first. Given that, Czechoslovakia was the logical place for cartoons to spring up. It was one of the few eastern European countries that didn't turn into dictatorships. And given that, it's not surprising that the rest of central and eastern Europe didn't see these kinds of cartoons.