Your other replies rely on "assume the government has powers it does not and/or the judiciary is willing to suspend the burden of proof in criminal cases". I mean... yeah. It's true. If you assume we live in a totalitarian dystopia then sure, the government can do terrible things.

But needless to say such a government doesn't need to pass boring AML laws to do that. It can just throw you in jail because it wants to. The actual rule of law under which we live doesn't have that property.