It is an interesting analysis but I have an alternative one.
You use turn of phrase “I watched Elons speech live” and that is exactly what you were being led to do - watch it, not listen to it. Who has been been discussing what he said? Not many, everyone has been talking about the “Nazi Salute”,
Heres why it wasn’t a “Nazi Salute” although I think it was deliberate..
The salute has been used for centuries in different situations, some of which you will have to search for yourself as I can’t say. It was a popular depiction of a Roman greeting shown most notably in Romantic art, it has widely been seen as a greeting in various situations, all of which predate the Nazis. Of course most people now associate it with Hitler and the Nazi party (although of course it was also (and probably predating the Nazi use) used by Mussolini.
Therefore, in order to be a “Nazi Salute” one must establish intention (although several countries - maybe understandably don’t draw that distinction. So did Musk intend to use that gesture as a Nazi Salute or greeting? I don’t think so. I think his intention was to make some people leap to the conclusion he was doing a Nazi Salute.
Why do I draw that distinction? Is it important?
I have found very little, if any, evidence of Musk aligning with Nazi ideology specifically. I don’t think he shares many actual far right views.
So why would he want people to think he was doing a Nazi Salute? You only have to look at his general MO, His way of gaining power is to divide and conquer. Every time he weighs in anywhere, sets up opportunities for discussion he very quickly facilitates a binary situation, he sparks arguments he knows will get the increasingly polarised masses shouting at each other.
So that seems a lot of effort to go to. Why? Firstly I think this fuels him he feeds off the arguments he causes - he gets a dopamine hit out of it that enables him to keep moving. Secondly divide and conquer. You watched his speech, did you listen to it? He did his “Nszi Salute” just before he told everyone his purpose was to plant flags (inc on Mars). For anyone listening rather than frothing about a hand gesture, This man was stating his intention to create an empire not just on Earth, there was no celebration of the current- he was interested in the future- he’s going to use Trump to pave the way, I’m not saying Trump will get assassinated on the steps of the senate, but I suspect this will happen metaphorically.