Also there's hundreds of similarly synthetic substances, each not individually going over set limits, but perhaps the resulting cocktail causes "death by a thousand cuts".
"Trust the science" doesn't mean much. In the 70s, studies showed that jeans caused cancer. And yogurt. Other, real carcinogenic compounds were not studied. It takes ages for the dust to settle down and have a decent consensus. In the mean time, it's best to be cautionary.