We can no longer withdraw Bitcoin because they have blocked our account. By forcing to contact the exchange, the exchange will serve by asking for some proof documents.
In the terms and policies of some centralized exchange, they stated that they don't accept Bitcoins from an untrusted source such as mixers or a wallet that has been flagged, some exchange even stated that they don't accept Bitcoins from casinos.
Just obey and do not need to fight because it does not bring any benefits to us because we already know about the prohibition of using mixers.
Indeed, the government does not want privacy related to money and the pretext of using mixers leads to illegal actions.
They (the government) target profit and can control, if not, it is not allowed.
In fact, using mixers is quite beneficial for Bitcoin users themselves. Again, it is labeled money laundering.