Yes Bitcoin will be fine. If she wins there might be a temporarily dump like we saw when he was losing the debate but in the long run it will be fine.
But if Gensler is still in the SEC and he keeps suing all these tokens which he calls unregistered securities then we will get issues with many non-bitcoin type of coins. Honestly who knows, one day he might say that Ethereum is a security even though we got the ETH ETFs launched already.
So bitcoin will survive but it would of been more successful if she didn't win the election.
Harris is not actually a threat for bitcoin. It's just that people are only speculating since the other presidential candidate is having a pro-crypto stance so most likely, this Harris is on the opposite side following the path of Biden.
But in reality, we can't be certain what would be Harris approach to crypto particularly bitcoin if ever she'll win the election. She can no longer pull down bitcoin now knowing a lot already have been starting to be aware on how to take advantage of bitcoin whether it's for currency or a good store of value.