I agree, great points. I only use the Hitler reference in private (eg “your friend essentially voted for Hitler”), because it’s just easier to make the point. And if they say something like “ that’s ridiculous. “, you know they aren’t on level and can terminate the conversation. He may not be Hitler, but it certainly rhymes (that’s the point)

That Elon Musk did the salute, is only a footnote, a small irony to symbolize what he really is. Which, although it may not be a Nazi, it rhymes very strongly.

“History doesn’t repeat itself, but it often rhymes”