The kinds of laws I'm talking about is people who aren't allowed to buy a gun obtaining one illegally, and those using a gun to commit a crime. These crimes need to be punished harshly, one to get them out of society, and two to act as a deterrent.These are the kind of people that existing gun laws effect.
Getting back to the original discussions, in answer to your statement, the United States does not have the highest incarceration rate. That goes to El Salvador, more than double that of the U.S., which has extremely strict gun laws, and gun ownership less than 20% of the U.S. It's not the guns that's the problem.