It is worth noting that I see the same problem ahead with AI generated content... but I feel confident the tools (and systems) can be built to thwart the bulk of it in its current form.
What makes you think this? Malware is always one step ahead of virus detectors. Exploits always come before patches. Why would this be different?
Because I tend to be optimistic.
I am not saying that it will be any different than the current cat and mouse game.