That doesn’t mean that anyone claiming that substance X or Y is dangerous if they say so without evidence. It still doesn’t justify assuming “chemicals” or a particular chemical is harmful.

Yes and try pronouncing the IUPAC names for a bunch of perfectly natural, healthy chemicals.

When people talk about “chemicals” they don’t know precisely what they mean, which is a problem.

How a substance is made is irrelevant and has nothing to do with its effects on health. Citric acid is also made in nature.