Let me answer you by pointing you towards what happened in the past.
When Prohibition was in effect people rushed in to fill the market demand by selling poison concoctions as drinkable alcohol. The same thing is happening today with Meth, it is nothing new.
Druggies tend to search for the ever higher high. That is nothing new either. Your claim that meth would not exist if the WOD were never to have occurred has no basis.