Well, for some reason you don't hear of people breaking into homes for money for vodka, or for money to keep their car from being repossessed.
But, people break into homes all the time for money to get more drugs.

Drugs carry a motive that apparently, other things do not.

I don't really think making drugs legal will change a lot, except to free up a lot of time for federal agents, so they can find some other way to harass and kill American citizens.
Doesn't much matter to me personally whether they legalize drugs or not.