As I have said many times when the topic of tainted bitcoin comes up: The correct response to some centralized service stating that your coins are tainted and they won't accept them is
to modify your behavior and sacrifice your privacy to acquiesce to the arbitrary demands of said service. Rather, it is to find a better service which does not enforce such absolute arbitrary nonsense. This applies equally to centralized exchanges as it does to Wasabi, both of which support mass surveillance, fund blockchain analysis, and arbitrarily refuse certain UTXOs based on secret criteria.
Here's an analogy:
I am a merchant. You want to buy some things from me. You try to pay with cash. I say "I cannot see the full history of this cash, so I refuse your money". So instead, you tap your debit card. I say "I cannot accept this money without knowing the full history of it". I demand access to your bank account so I can see where all your money comes from. You leave and come back with your bank statements, but I don't like what I see, so I refuse payment. You then try to pay with PayPal. I demand access to your PayPal account so I can see where all your money comes from. You unlock your PayPal account on your phone and hand it over for me to look at. This PayPal money looks OK to me, so I accept it. You then leave the shop and start telling all your friends "Make sure when you shop there you have all your bank statements with you so the merchant can look at them, and make sure none of your money comes from anywhere except your employer, since they can't trace those funds." Your friends all look at you like you are crazy, and then simply choose to shop with the merchant next door who doesn't do any of this nonsense.
Whenever this situation comes up, with the discussion of centralized exchanges and privacy, it always seems that the default position is "Sacrifice all your privacy and let people spy on you so that you can use a centralized exchange". In any other financial situation that would be seen as utterly crazy, as I've just shown above, but for some reason with bitcoin people just accept this nonsense? The problem here is not mixers, or coinjoins, or Monero, or any other privacy technique - the problem here is centralized exchanges. If you don't want a centralized exchange to seize your coins, then don't use a centralized exchange. There are plenty of decentralized exchanges to choose from.
The logical position when faced with entities which are stealing coins is not "I should bend over backwards and sacrifice everything to hopefully mean they don't steal
my coins!", but rather to simply not use the entity which is stealing coins.
Most of the power of authoritarianism is freely given. In times like these, individuals think ahead about what a more repressive government will want, and then offer themselves without being asked.