It may be worth noting that, as LH indicates with his link to wartime newsreel, the 'hitler rants' videos are a continuation of a long tradition of humour invoking ridiculous representations of Hitler (check out Punch cartoons also). Some might find them trivialising, but in the UK at least, this kind of silly humour didn't just suddenly emerge on YouTube, but represents a type of popular humour in which ridiculous representations of Hitler and the Nazi's have been evoked in varying contexts since WWII.