If she wanted investors on her side all she needed to do was to promise some tax cuts on cryptocurrency capital gains, for example; but that kind of promise would go completely against the policies of the current administration and the messaging the nowadays democrat party is trying to give off to their voters, they are in for further taxation on the rich, including those who are getting their money from Bitcoin and cryptocurrency.

Though, I agree with you, I believe Kamala must be overestimating the size of her voting base and also the power of their support, so much so she believes she does not need to appeal to a particular group of people on the country. Trump is literally running politically to stay out of prison, so it makes sense he tries to appeal to as much people as possible, by talking about Bitcoin and cryptocurrencies without exactly knowing what this whole community is about.