I've worked for a number of startups that, in retrospect, had terrible business models

Personally I am past the "crypto is a terrible idea as a technology" phase. A very significant fraction of crypto companies are basically just running a scam. FTX was the third largest exchange and even they turned out to be fraudulent! At this point if you are involved in crypto, my assumption is that you are knowingly involving yourself in an attempt to scam people. I have no problem with not being a "true believer" of the company you work for. I do have a problem with willingly working for criminal enterprises. It's not 2014 anymore, you can't close your eyes to the issues inherent to crypto.

That’s an interesting point. But I still wouldn’t include crypto on my resume - instead, leave a gap in the resume, and if the hiring manager asks, explain. It reminds me of how I see a lot of applicants to LinkedIn job posts with people who list their work history all the way back, past their time in the industry. Eg McDonald’s cashier. You may think that has a positive effect (has experience talking to customers, can be trusted to handle petty cash, held a job even at minimum wage..) but in reality the first thought I have is “did bro really put McDonald’s on a backend dev resume lmfao”