Like the other commenter said, doing something that looks like a nazi salute doesn't make you a nazi, and supporting far right parties does not make you a nazi.

Both those things do however make other people think you may be a nazi, which is all that really matters here.

Whether Elon Musk is a nazi is irrelevant, what matter is that people think he is.

He may look like a duck, and he may quack like a duck, but don't let that fool you...