What do you think the merchants that receive funds from you marked to be from a mixer and possibly even from criminal activity think?
I think that we either treat each coin equally or this whole concept falls apart. Every coin is potentially originating from criminal activity. Merchants cannot expect from their customers to hire a (provably inaccurate) blockchain analysis firm to tell them if their coins are "clean".
If all transactions are private, then we're all accepting the same consequences and fighting for privacy.
So? Does that mean that until all transactions are private on a protocol level, everyone's forced to use bitcoin with ridiculous levels of privacy? Lol. As I said, I'll never understand your perspective.