Full-auto is a fun way to convert money into noise. It's one way for God to tell you that you have too much money. Regardless, good folks don't misuse them, and you can't stop bad guys. You're 100% right. The only way to stop bad guys is to extend the death penalty towards all crimes involving the historical types of banditry (armed robbery, entering a home to harm or rob someone, rape, the killing of someone who has not threatened you, your family or property, etc) and to arm the good guys. What I don't want to see is gangs like MS-13, Bloods, Latin Kings, Crips, or whatever they call themselves with readily available full-auto weapons. If they are unavailable, law-abiding citizens will be on par with the criminals. Think about the impact of full-auto weapons on our society and police forces.