I think as the left has become more homogeneously college educated they are less likely to wholesale accept blatant lies and falsehoods. For someone like Musk this will naturally push them to the right because he incessantly lies/bullshits so often and has a visceral negative reaction when being called on it (the cave fiasco comes to mind).

If the right will welcome people like Musk with open arms (always a natural fit anyways, he's rich as hell) then why wouldn't he pull the mask off? Despite most Tesla customers being presumably left leaning, his heel turn doesn't seem to have had much negative impact on the things that matter to him so far, for example his net worth.