All countries even those who are crypto friendly are most likely to be against Mixing , those countries who are crypto friendly are largely partners with centralized platforms that's to say they want to know how their citizens make use of crypto currency no privacy protection at all.
So using Mixing service will not allow them achieve their goal and as such they will definitely be against the service which they can't render a direct attack to any mixing platform since they are not registered or licensed by any regulatory authority, all they just want it a reason to attack mixing platform and that reason is to link it to money laundering and if they can validate any proof that a crime was committed using the platform then they have all they need to attack. 
Which is why most people are seeing mixing as money laundering platform because of the Fud the Fed's and others Bitcoin haters are spreading regarding Bitcoin.

A real Bitcoiner will definitely know that mixing primary goal is to protect holders privacy, and has nothing to do with money laundering.