The fact that the supreme Court can use that argument is insane. Is not washing our hands before surgery American tradition? Is slavery American tradition? Just because we've done something before, doesn't make it legal in any other topic area.
Americans also just renamed some of their Christian holidays in order to pretend that there's equality. My daughter still has to do homework during Chanukkah every night but gets the week of Christmas off but now the same exact vacation from school is called "winter break" so it's totally "not religious now."
Normally I'd agree but I think in this case descheduling has a different route. I think the president and the DEA can just move it down the made-up list of scientifically inaccurate fear-mongering.