Exchange Crypto > XMR.
Exchange XMR > Crypto
I now have "clean" crypto.
Using XMR skips the entire middleman process of course. We're one big raid away from Monero being mainstream.
Unfortunately, it doesn't work that way. Non-fungible coins are non-fungible. No matter how openly and cleanly you acquired them, they may have been "tainted" 2, 3, 4+ txns before you