Despite being unable to prove a single instance where this kind of privacy invasion has prevented a crime, the US government pushes ahead with it nonetheless under the guise of "safety" and "won't you think of the children!". It is mass surveillance, nothing more, nothing less.
Having said that, however, we should be by no means just rolling over and accepting it. If we let the governments of the world pass these kinds of laws with no fight, then any and all privacy will rapidly become a thing of the past. And when it comes to bitcoin, that means the community not accepting ever more invasive KYC and certainly not rubbishing the vital service that things like mixers and coinjoins provide.
Yes whether in Bitcoin or some other facet of life you have to fight these things or states will just take one liberty at time inch by inch, all the while having the gall to brand you and anyone else that talks about about privacy and mass surveillance as some sort of conspiracy theorist nut job or as someone who is being selfish and not thinking of the greater good. However nothing can be used as an excuse/justifaction for actions like this or we will soon find our selves in an Orwellian.
I think the best example of this is the Prisim debacle ( which many people seem to have either forgotten or simply ignored) where despite being caught red handed the government working hand in hand with many media outlets was able to change the whole narrative from one of spying/mass surveillance ( which ironically we so quickly condemn other nations for however when we do it it is only for the greater good, orwellian much) to one of treason against the Edward Snowden.