Don't forget the boondoggle that is civil forfeiture!
The only problem is that there would be stupid conversations about how the government now needs to provide equal-access grants to poor people so they can buy taxable crack.
Oh shit, that is messed up though... I think they should just start by making weed legal then go from there.
But here's the thing and the cops know what's going on. All the drugs now are precursers. None of that shit is pure MDMA (can't be found no more, same for speed, the speed is meth in tabs, ghb is no longer ghb it's gbl)
The second they catch on to what the precurser of current times are, they chemists got 1000's of others. Great youtube vid on this topic.
It takes them years to find this shit out. So they're technically sending stuff over here 100% legal as it's not banned yet and making shit loads of cash legally.
So in a sense may as well make all that dirty money work for society as the taxes will be in the upper end range to say the least...