Anyway, I'd love to see what happens with mixers and their regulations, and how the governments deals with it.
i don't think the government can ever regulate mixers! by definition a mixer must remain unregulated. so all they could do is either shut them down and the mixers will either shut down or move away to somewhere that those governments can not touch them anymore.
and all this drama will only make things more decentralized. for example if they start shutting down mixers then things such as Coinjoin will become more popular, Anon coins like Monero would fly to the moon,...
if I'm not mistaken, the mixer makes our crypto untraceable, and I think this is against the government. I also feel that the government might not support this. Well, if the government accepts the development of crypto, of course a mixer will be illegal. but we need to see this development further.
Even mixed cryptocurrency can be traced. Mixers just make it much harder, so that in order to trace it you have to dedicate a lot more time and money, and preferably have a good program to help you do it. While mixers are making algorithms to better hide the coin's origin, government agencies are doing the same thing in reverse. Everything is in the blockchain and I've seen graphical representations of coins ending up on certain addresses after they were mixed. When you have that you just wait for someone to spend and then go to his place with a warrant and ask where he bought his coins. Then you go to the person or exchange he got it from and eventually get the information you need.