No, that cat is out of the bag. First, unilaterally forcing controls on models will not shut down open weights produced in other nations. Second, the capabilities are too powerful for military amd spy agencies to ignore. They will force the creation of unshackled models to attack IT systems, even if it must happen in secrecy.

No. The Chinese have already developed frontier models. And we would be fools to assume that's a permanent end to the list. North Korea has nuclear weapons. Iran has ballistic missiles and leading edge military drones. There is no fundamental reason why both countries shouldn't be able to train frontier AI models.

Trying to protect ourselves by putting restrictions on the technology would be like trying to hide from a tiger by wrapping a towel around our heads on the basis that if we can't see it then it can't see us. That trick only works on imaginary monsters, not real ones.

You should assume any of those are possible. And by that I mean: it's not physically possible to "control the technology" without instituting total surveillance and even that's just false security.

Defense is the only way.

You don't realize it, I imagine, but you're essentially advocating for the contemporary equivalent of requiring a license to print text on paper and distribute it.