That's really not true. Sure, there are huge amounts of scams and ponzi schemes and that's what gets attention, but crypto is absolutely used every day by many in a decentralized and effectively anonymous way.

Dark markets are still active and people move large amounts across international borders effortlessly.

As an example of being effectively anonymous, I can easily take some cash, meet up at a cafe nearby with someone from a p2p site to swap it to crypto, and then pay a foreign company for hosting services for years with that crypto, sharing zero personal information.