To Legalize Marijuana across all states of america and tax it how you see fit without closing dispensaries

Marijuana should be legal it causes no harm and, it cost so much to lock people up just for having a little bit of weed.
It being illegal causes tax payers to pay for it, and it causes young people to lose their life. Lets be logical, the Government could make a lot of money from Marijuana and, the people in America will be much happier and, more respectful to each other i guarantee it.