KYC isn't about what happens to the coins afterwards. It's about a list showing you bought X amount of coins on Y date being tied to your real identity that governments and criminals will know (this info will leak eventually it always does - just search all crypto exchange data breaches for this year alone). You can't "unKYC" by coinjoining or swapping to Monero. Does nothing to erase that list. Goodluck convincing the state and criminals that "there is no way to prove that I control those sats anymore". Doesn't matter if it's true or not. They aren't going to believe you. You're guilty until proven innocent. You're now a target.

GitHub

physical-bitcoin-attacks/README.md at master · jlopp/physical-bitcoin-attacks

A list of known attacks against Bitcoin / crypto asset owning entities that occurred in meatspace. - jlopp/physical-bitcoin-attacks