I feel like you’re saying take my losses because I can write them off. I’ve never had taxable losses before. Everything I have is in tax differed retirement accounts. Can I write the Bitcoin losses off of my income?Your cost basis of an "investment" should have nothing to do with the decision to sell or hold (beyond tax considerations). If you think it'll be worth more in the future, enough so that it makes sense to hold it, then hold it. If not, then sell it. Tax considerations are the only thing your purchase price has to do with it.
I never bought crypto because I had no idea whether it would be worth more or less in the future, and I still don't.