If you consider that the people weaponizing code are not honest, I as a FOSS producer am unworried. There may not be a lot of people out there able to use my code compared to LLMs scraping it, but I'm giving a leg up to other humans trying to do what I do.

If what I'm doing is interesting or unusual, LLMs will firstly not recognize that it's different, secondly will screw up when blindly combining it with stuff that isn't different, and thirdly if it's smart enough to not screw that up, it will ignore my work in favor of stealing from CLOSED source repos it gains access to, on the rationale that those are more valuable because they are guarded.

And I'm pretty sure that they're scraping private repos already because that seems the maximally evil and greedy thing to do, so as a FOSS guy I figure I'm already covered, protected by a counterproductive but knowingly evil behavior.

These are not smart systems, but even more they are not wise systems, so even if they gain smarts that doesn't mean they become a problem for me. More likely they become a problem for people who lean on intellectual property and privacy, and I took a pretty substantial pay cut to not have to lean on those things.