It was guns for them. Now it’s knives and swords. Next it will be hammers. Then it will be something else. Man is very good at figuring out how to kill other men. Eventually it will be rocks and sticks. OR, they could try to address the real problem. Nah, banning things is easier and more importantly not judgey.
It'll eventually be hands. In some cultures today, you forfeit a hand for stealing, never mind killing.
During the covid shutdown in Northern Ireland, the PSNI confiscated and displayed a collection of pointy sticks and table knives.