For Musk, he's a white, rich tech bro who explicitly announces his "alpha" status https://nypost.com/2022/05/23/elon-musk-told-first-wife-at-t... (which I'll let you read between the lines yourself on) - a lot of white wanna be rich tech bros will identify with him.
And that's not even going into the whole "If I lick his boots enough senpai might notice me" dynamic
Now, of course there are fanboys agreeing with everything and haters disagreeing with everything, but in these Elon threats I saw a lot of accusations of fanboyism/blind hate when the actual commenter simply disagreed about the situation.
I guess I never looked up to someone in that way maybe... Especially someone who I don't know personally and see on the internet (and thus might be a horrible person irl).