The wrong hands will have the same access to whatever "superpowers" AI gives regardless of what regulations are or are not put in place. Regulations can't and won't stop potential bad actors with state-level resources, like China, from using any technology they decide they want to use. So trying to regulate on that basis is a fool's errand.
The real question is, what will put the good actors in a better position to fight the bad actors if it ever comes to that: a big tech monopoly or decentralized open source anarchy? The answer should be obvious. No monopoly is going to out-innovate decentralized open source.
> I'm not sure how easy it will be to stop bad actors since barriers to entry are exponentially lower to developing a malicious AI tool than, say, developing a nuke.
Since some bad actors already have nukes, the answer to this should be obvious too: it's what I said above about the wrong hands getting access to technology.