That's exactly the problem; anyone not violating the natural rights of others (nor posing clear and present danger of such violation) shouldn't be pushed around at all by anyone.
Regulation, licensing and control necessarily entail the use, to one degree or the other, of LEO.
In the end recombinant DNA technology is going to take care of the problem of "natural herbs" by allowing for the displacement of the crops you have come to know by those which turn into alcohol if heated to 180 degrees (due to an enzyme produced by the modified genome).
We know how to handle alcohol if not MJ.