I personally don't really mind Gensler, it will be indifferent for Bitcoin if he stays or not in my opinion. However if I was to vote I would replace him with somebody having more idea about a regulation that could make ICO crowdfunding easier, but with still strong investor protection (But I'm also not from the US.)
I don't mind him much either. Protecting consumers against fraud makes all of us money because it means we will get more mainstream investors with a lower risk premium. The thing holding trillions of dollars back from consumer investors is people's perception that the crypto business is full of fraud and criminals--and Trump would reinforce that perception.
Gensler has been made into a boogieman by a few billionaire Bitcoin whales who have pumped $millions into Trump's campaign because they want revenge. Harris choosing a pro-crypto SEC Chairman like Cuban pops that balloon, and forces the Trump supporters here to admit they only want Trump because he's a criminal like themselves, or because he wants to make abortion illegal, or whatever their thing about Trump is--and that it actually never had anything to do with Bitcoin or the crypto business (which was just a convenient excuse).