The quality of a product is subjective to the user of that product. This is a scientific fact of economics, and insistence otherwise is science denial.

That’s why we have regulation LOL toxicity is not subjective

Oh Lordy what has become of HN a load of fresh dummies with no grounding in the basic principles of libertarianism. All the fire none of the intellect.

Just no sport.

Sometimes the results of science are unintuitive, but they are facts all the same. The toxicity is an objective feature of the chemical properties of a substance. Whether, to what extent, and how people value such a substance due to its toxicity, and how this plays into their activities which might have assumed its nontoxicity is a subjective matter. The latter is what the manufactuerer is interested in when producing their product; if they consider the former objective fact, it is because the latter subjective evaluation makes the objective fact significant.