Prohibition had two theaters - the legal and the social.
It did help create the “mobs”. It’s hard to imagine the “mobs” becoming as big and well-funded they became, without prohibition.
It also was part of a process whereby “the people” changed attitudes about drinking; where drinking heavily and drinking as an addict received increased negative public sentiment. Over time, drinking in moderation though with some regularity also gained in acceptance. The American people sort of found their median between wanton consumption and abstinence.
So, if the period of prohibition may have helped create, in its wake, our present moderate levels of alcohol consumption, as well financing the mobs, is it not possible the nation is educated enough, alert enough, changed enough and ready for the same type of transition from the War On Drugs, to something else?
Crime records contradict your thesis. I’d tell libs to stop making excuses for criminals.