I have a terrible idea: an ad blocker that only blocks AI generated ads. It submits the ad image/copy to Gemini and if it is not a fake product the ad is displayed. I'm confident that Gemini would do a pretty good job at identifying these scams and that the extension would demonstrate how easy it would be for Google to do it themselves. If they and their employees cared.
I could LLM this up but eh. It won't actually convince Googlers to do the right thing so it'll just stay a terrible idea.
It's not like that would save you from the scam ads. They were a problem before AI and if they see their AI ads blocked in large volume, they'll switch back to non-AI generated ads.
I can't remember the last time I saw an ad on instagram that wasn't some kind of scam.