They remember that under Prohibion the Treasury Department got lots of money and hardware, and got to hire lots of people to enforce it.
There is no law so odious nor no police agency so reprehensible that place-seekers would not trample their mothers in a mad scramble to secure a position at the "public servant" trough.
In the mouths of this prohibitionist rabble, "It's the law" translates roughly into "That's my cash."