I partly share this concern, however, I think the "crypto is dubious" belief is unfortunately quite popular already.  Outside of our crypto bubble, of course. And I don't think it's because politicians used anti-crypto slogans in their campaigns. Imo it's mainly a mix of those who are skeptic towards anything new and shiny, the anger about a missed opportunity (not having held Bitcoin since 2011 or so), and bad experiences (see below).

However till now there are no indications that Harris could join this "anti-crypto club".

I believe Terra/Luna at least did some collateral damage to Bitcoin. First, because they sold so many coins they had held to back their shitcoin, that the 2022 bear market was heavily amplified. But second, because altcoins like Terra were attracting many retail investors who suffered heavy losses after their collapse and got disappointed of the whole crypto sector. And the FTX debacle, responsible for the first crash under an old all time high (~$20000), showed that some oversight and regulation for exchanges (those of that sizes at least) is probably not a bad idea.

Both cases probably caused, in part, the relative reluctance of retail investors to join Bitcoin again in its current bull run. And contributed, too, to the bad image the crypto sector got - together with the ICO scam wave of 2017/18.

If we lived in an utopia I would love these business models to implode alone without any regulation being necessary, people learning their lessons and these business models simply drying out -- Bitcoin not being affected. But Ponzis exist for centuries now and people simply don't learn.