Bisphenol A is certainly not inert. It's partly used as an antioxidant, so its very purpose in this application is to be oxidised, not inert. It's also a xenoestrogen.
Note: in chemistry, inert describes a substance that is not reactive.
I really want a label that says this product is safe and free of all the bad things like forever chemicals and phthalates. Think vegan or halal. Unfortunately the plastics industry loves to pedal the BPA-free meme while they are free two swap out BPA for very similar chemicals.
Outside of food and drugs, chemicals that are given a free pass until we find out it's been affecting peoples' health. That needs to change too as it's quite clear we cannot trust DuPont or 3M to do the right thing.