Anonymity is a prerequisite to being unregulated. Monero for example is apparently resistant to US sanctions. They tried to sanction a wallet and ended up sanctioning a transaction hash.

https://www.treasury.gov/ofac/downloads/sdnlist.txt

> Digital Currency Address - XMR 5be5543ff73456ab9f2d207887e2af87322c651ea1a873c5b25b7ffae456c320;

https://localmonero.co/blocks/search/5be5543ff73456ab9f2d207...