Crime is actually less in places where people own guns. Washington, D.C., is a case in point. It has the strictest gun laws, but who has the highest crime rate in the country? Washington, D.C.
Giving a 10-year mandatory minimum for a second offense fist fight is not going to reduce the chance that someone will be stabbed 16 times when you are not funding any of the programs that are desperately needed to actually reduce juvenile crime.