Because it is not up to the State to legislate what constitute the historical truth. Moreover, this whole mess gave Robert Faurisson airtime on national TV, an

Because it is not up to the State to legislate what constitute the historical truth. Moreover, this whole mess gave Robert Faurisson airtime on national TV, and made him look like a martyr. This is the last thing you want from such person. Let holocaust deniers and KKK member distribute pamphlet at intersection or self publish their book, that going to be the biggest audience they'll ever have. By going after them, you encourage them in their quest and prove their conspiracy theory right. Same goes with provocateur ala Milo whose only success is based on thin skinned SJW.