Do you not understand what the word axiomatic means? If there are 70,000 chemicals and only 500 have been tested, does that mean *every single product* *must* contain an untested ingredient? No, because products don’t randomly pull ingredients out of a hat. Proof by counterexample: pure water in a bottle made of the many materials that have been tested for food safety. But hey, why bother with facts when you can just make shit up and call it "axiomatic"?
This seems kinda okay though. It’s very different to saying “known to be unsafe”. There are tons of untested (or insufficiently tested) things.