How do you think: does crypto make criminal life much easier? We all know that criminals use crypto to sell drugs, guns, people and everything else. Did crypto make doing such things easier? Earlier criminals had to think how to keep their anonymity and get paid, how launder their money, how to not get catched with this. But now they can just use crypto and all the headache about this financial troubles passed away. Of course there is much bigger positive points of crypto and not every user of crypto is a criminal, but anyway are you worried about this? Criminals also worsen the reputation of crypto that is not really stable itself.
I don't think so. because there's a way to prevent these illegal people. like banks. exchange companies keep personal information in the KYC/AML database. a system can filter for guilty people. prevents them from processing. in real life, a criminal does all sorts of things. he gets cash. someone else has a wire transfer. guilty everywhere. this feature can be used for criminals.