I dislike the weapon analogy, because it implies that proliferation of AI (ergo everyone running an LLM on their PCs for code completion or for the ability to speak to a home assistant) is akin to everybody having a cache of unlicensed firearms.

It has been the agenda of most FAANG corporations (with the notable exception of Apple) to turn the computers average people own into mere thin clients with all the computing resources.

Luckily, before the cloud era, the idea that people can and should own powerful personal computers was the normal. If PCs were invented today, I guess there would be people raising ethical concerns about regular citizens owning PCs that can hack into NASA.