No!! Mixers don't work anymore, stay away from them. There is an easy way:
Mixers are only banned from this forum. Mixers themselves are still working.
Because of how Monero works, your crypto is now fully anonymous. You can now swap it back for bitcoin or any other crypto, and your coins are untraceable.
how should he swap them to keep them anonymous? using any centralized exchange would make them known to him again. which would kill the whole point.
I think A Good mixer is still better than all these hassles.