PFAS aren't plastics.

And removing them clearly didn't increase the price of sticks of butter by $5.

A lot of plastic containers use fluorine-treated plastic [1], resulting in the creation of PFAS. The fluorine is used to strengthen the plastic and make it less permeable.

> Since EPA released its investigation, we have learned the disturbing fact that the fluorination of plastic is commonly used to treat hundreds of millions of polyethylene and polypropylene containers each year ranging from packaged food and consumer products that individuals buy to larger containers used by retailers such as restaurants to even larger drums used by manufacturers to store and transport fluids.

[1] https://blogs.edf.org/health/2021/07/07/beyond-paper-pfas/