Well if drugs were legal and people weren't sent to jail, could you imagine the reprecussions? Most drugs render people with impaired judgement and not fit to interact. This would create dangerous enviroments and a lot of people too high to do anything. While in some cases drugs are needed, anything that negatively affects the brain and conciousness and is addicting should not be legal. People are ignorant, though, and we know that drugs and achohol will continue. Prohibition didn't work because, for one of many reasons, achohol was legal before and people weren't about to stop. But to make drugs legal would lead to chaos in some regions. Breaking the law should have consequences so I assume you want to make drugs legal, but think. Do you really want everyong around you high? While people use drugs now, we don't want to increase that percentage.
Also, drugs can ruin lives. Between addiction and things done under the influence do you really want to subject people to less pressure against taking them? People don't always think ahead and someone has to look out for them. And if this creates jobs, then it's all the better. We need more jobs to support people, unless you want jobless high people walking around.
I think you're taking the war on drugs thing the wrong way. The government is not trying to "hurt" or demean people. Are they really better off getting high? The government has to back up it's laws otherwise they will not be followed.
Oh and btw, while prohibition may not have worked - it failed - it did slow down drinking. Drinking wasn't back to original levels before prohibition for 10 or 15 years, impressive concidering it probably would have increased if not for it.
Legalizing drugs would not be a good thing...