You keep repeating the "stupid users keep causing the problems so we punish them argument"

This doesn't work worth a shit. It especially doesn't work with things that seem safe and become wildly dangerous. In fact most governments control this by ensuring their population doesn't get to touch those dangerous things at all. The open source AI people get really mad when that's said, but it is inevitable.

Worse, the law does not apply to sovereign nations with nukes. They can and will make more and more advanced digital weapons until one causes some big ass problems.