That is probably a big part of it. There is also someone else out there with apparent narcissistic tendencies, and that person also didn't fit neatly into our politically sorted view when he came to power.
It is likely that a type of person and a type of group is simply attracted to narcissistic leaders. I think it adds value to ponder whether people like Elon are acting purposely in narcissistic ways and whether they are purposely pushing culture war/conspiracy buttons. And if so, what is that purpose? What are they trying to do? What if it isn't just a simple personality order or mental illness?
I think they are both motivated by power, money, and influence. One person is willing to burn our political institutions, our position in the world, and the constitution for his power and grift. Elon seems willing to spend $44 billion, convert twitter into a propaganda machine, and put his other companies and reputation at risk. He was the richest guy in the world. Why does he need more power? What is he going to do with it? Maybe if is just mental illness but what if it is not?