Well if you put me in a plastic bag I would also be able to get out by tearing a hole in the plastic bag. That fact doesn't say anything about my ability to met

Well if you put me in a plastic bag I would also be able to get out by tearing a hole in the plastic bag. That fact doesn't say anything about my ability to metabolize plastic though. I would never even consider the worms were doing anything else but mechanically chewing the plastic.