I see the similarities and why you would compare them, but the big difference is that you can't download a nuke. Any legislation to police/gatekeep LLMs is going to be flawed because of that.
It is a similar 'pandora's box opened' type of situation where there's really no walking back from now that the cat is out of the bag. In an ideal world, everyone would give up their nukes. But we do not live in an ideal world. I do feel similarly about AI. If I could snap my fingers and delete the tech, I would. But now that we have it, it's not going anywhere and we need to deal with it rationally.