If we had to have global policing of every large computing cluster and everything that runs there, that does not feel to me like a huge overreach or something that could easily slide into totalitarianism.

It would be better if we didn't need to do this, but I don't see a less intrusive way.

Of course, if you don't think there is a real existential threat then it's pointless and bad to do this, it all depends on that premise.