Same deal with booze. We have things like White Lightning, which can kill if you drink too much of it. Since that exists, I think we should ban beer and wine too.
I have brewed beer and have distilled ethanol legally to 95% or if you prefer 190 proof. (part of pharmaceutical recouping of waste ethanol). The production of almost maximum percentage of ethanol has been doable since distilling was invented many centuries ago. Nothing new here. The increasing of potency of cannabis by breeding a more potent plant is fairly new. 190 proof alcohol can and will kill you if you take too much. Like Rum 151 proof is doable but not much more.
The increase content of tetra hydra cannabinol has made pot compareable to LSD especially if eaten.
The two are apples and oranges and not comparable