How are these suggestions for improving Flint, Michigan, lowering the crime rate and raising the standard of living?

I’ve picked Flint because it’s one of the most dangerous cities in American according to a study of FBI crime statistics.
You go there, arrange a meeting with the top drug lords/gang leaders. You tell them that you will no longer arrest or harass any of their members/crew. they are free to sell and deal drugs. In return, they would have to contribute a very small portion of their profits towards making a drug effects information program. This is not a recovery center, just a program that tells people the pros and cons of all types of drugs.
There will be no selling to kids, and obviously x miles away from any school and/or government building. Selling/dealing/smoking will basically be tolerated within certain zones/areas.
You start a renovation/construction/remodeling program. Using people from the community, to build. Once houses, businesses, buildings, offices etc. are finished, people from the community will work there, and run those establishments.
I understand that some of the “permitting drugs” parts might be illegal, but there are 2 reasons for that:
1. Will they be doing what they are doing in x months, if no ones does anything?
2. You can’t make people do stuff, they will have to want to do it.
So after a couple of generations where the kids grow up in better households, safer neighborhoods and schools systems. They will be educated enough and smart enough to see and choose sitting in an air conditioned office, making a pretty descent salary vs. running around and risking your life in the streets.
I’m interested to know what your thoughts are on this. Please be positive and instead of saying things like “you will get shot in the first meeting if you can ever get one” please just think what if…

Clearly no one cares about anyone in the world, and no one is doing anything. I want to hear good solutions if you have them, or flaws in mine.