I wish stoping crime was that easy. Its not.
Sure it is.
If we simply rolled back all the restrictive gun laws nationwide, allowing CCW anywhere in the US, it would eventually work itself to a natural conclusion.
If enough armed, law abiding citizens were shooting bad guys, if and when necessary....along with bad guys shooting each other, we drastically decrease the bad guy population.
If every time a bad guy broke into a home or tried to harm someone he got his ticket punched, crime would dwindle. Interviews with incarcerated inmates have borne this out. Most say that their biggest fear when committing crimes was running into armed citizens.