You don't think drug laws were zealously enforced during Prohibition in the 1920s? Or during the 1950s? I'm just not seeing it. There have been moral panics over drugs leading to ludicrous overreach (at various levels of government) on quite a regular basis since well before "Reefer Madness". It didn't start with "crack babies" and "glue sniffing" - claims that the latest new drug (whatever it is) is different and more addictive and more dangerous than any prior drugs and this makes users extra dangerous to deal with which justifies using extra force or even shooting people with higher caliber weaponry, goes back at least a century.

No, I don't, not to the extent they are now. We didn't send people to jail for life for simple possession of anything, and we didn't have a fucking "Drug Czar" either.