I have no idea how successful the US war on drugs has been and I don't need to, because I am not from the US and the US is not everything there is in the world. Just because one attempt to fight something bad failed, that doesn't mean every attempt ever at fighting anything bad is doomed to fail.

As a means of reducing incidence of drug use, prohibition does in fact work.

I'm not saying the war on drugs has been successful by any means.

But legalization has also been a really disappointing flop. After marijuana was legalized in my state, it has been really disturbing to see usage skyrocket among middle and high schoolers. A lot of people apparently derive their standards of morality from the legal system.