I am acquainted with people who firmly believe the Devil's Plant is terrible and shouldn't be legal anywhere — what then?
But you also need to watch for outliers - laws that are WAY past their prime, and should have been put to pasture long ago.
Basically, the legal system needs a garbage collection mechanism.
Andrew was a man ahead of his time.
Legacies are complicated.
(and, BTW, I agree with the general meaning of your quote from AB)
Before legalization, one of the biggest reasons for arrests was marijuana offenses. Not only were police the biggest expenses on many towns' budgets, but many municipalities relied on revenue from those marijuana arrests to balance their own budgets. Now cops are scrambling to manufacture other victimless crimes in order to justify their budgets and compensation, as well as keeping their employers afloat.