Source please that confirms mixers are legal? I would never do the same argument ever again, the moment I can see how mixers are legal.
The burden of proof is on you. In my jurisdiction there is no law saying "Bitcoin mixers are illegal", or "Bitcoin transactions are illegal", or "owning a car wash is illegal" or any such thing so you're demanding to prove a negative. Prove that you're not Satoshi Nakamoto.
First thing, you are one of the few forum members who at least make sense with their replies so I don't mean to fight you.
I already gave you the article that confirmed mixers are illegal. But let's take this one step forward. If murdering others is legal in my jurisdiction does that mean I can murder anyone and even promote guides on how one should kill others? You have to think at moral level, if something is helping scammers get away, just don't promote it.