Do you think cash will still be a thing a hundred years from now? Do you think the cocaine trade, tax evasion, illegal gambling, money laundering etc. will still be a thing in a hundred years?
Personally my "bull case" for crypto is that I am pretty confident about answering no and yes to those two questions, respectively.
I'm being cynical, but I also think that's true.
I haven't owned any crypto in a long time and won't going forward.