I'm skeptical. If someone really wants a Tesla, my guess is that they'll rationalize Musk's actions or least compartmentalize them.
No, it's the reverse. Someone who finds Musk's behavior so abhorrent they fear being affiliated with it will actually find reasons they don't really want a Tesla.
It doesn't help that Tesla, making extremely low quality and uncomfortable cars for the price point, provides plenty of dislikable things to find.
I think Facebook is even more universally thought of as a bad company, and everyone still engages there, too.
That was 10-15 years ago, but back then Musk appeared different, and Telsa was new. Today you can buy a Tesla, they are no longer the status symbol they once were. A 15 year old Mercedes is a status symbol in the US, a 15 year old Tesla is not, Tesla didn't capture the status symbol market (which might have been a good decision - what wasn't a good decision was for the CEO to go public about political views that are lot of his potential base to not support)