I'm a only a single data point, but: I was recently in the market for a new EV, and the biggest reason that I didn't go with Tesla was Elon. Full stop.
Also, not everyone makes their car/EV purchase based on who Elon is. Some might care more about the car itself and how it competes with others. Some might not even know who Elon is, or what he's done on twitter.
More like barely anyone in the real world does.