I'm not claiming you will get nutrition from it, I'm saying these thing are not toxic to the body because it has the necessary biological mechanisms to handle i

I'm not claiming you will get nutrition from it, I'm saying these thing are not toxic to the body because it has the necessary biological mechanisms to handle it. It's the same way that, even though you shouldn't drink it, acetone is barely toxic, because your body knows how to process it. I should remind you that there are other plastics, but polyethylene is not one of the toxic ones. (Gas, as in gasoline, has benzene which is a different category. Note also that many plastics have plasticizers which are also a different category, although polyethylene rarely has any, it's possible that it could.)