since we can’t really absorb molecules that long and it’s already literally everywhere.

I’m curious how you came to this conclusion. PFAS and PFOS stay in your body for an incredibly long time and can accumulate quickly. We have no easy way of processing them out, and yes we absorb them into our longer term cells like muscles and fat.

It’s an incredibly important health problem the world is facing, as every variant of PFAS and PFOS causes cancer. and there is no medical way to remove PFAS once its in your body. The absolute best you can do is lower (you can’t eliminate) your exposure over time and hope the build up isn’t enough to trigger cancer growth before you get cancer or die from another source of industrial pollution.