Crime is relative so to say a major application of crypto is "crime" isn't necessarily a bad thing. I've seen a Russian commentator in another thread claiming to commit the "crime" of donating Bitcoin to Ukraine (while still being in Russia). I'm sure those of us in the Western world wouldn't have any big moral objections to that.

That being said, most studies point to the conclusion that the major application of Bitcoin at least is not crime:

https://www.forbes.com/sites/haileylennon/2021/01/19/the-fal...

https://cryptoforinnovation.org/resources/Analysis_of_Bitcoi... (by Michael Morell, former Acting Director, Deputy Director and Director of Intelligence at the Central Intelligence Agency (CIA))