>We're talking hundreds or thousands of years before we'll know how bad we fucked up. Almost every life forms on the planet are linked one way or another, every changes has an impact.
>Remember when DDT, asbestos and lead plumbing were harmless to humans ? Then they were classified as "could" be dangerous or "may" be harmful. Now they're straight up banned everywhere.
This is exactly the kind of emotional appeals the GP is complaining about. There are tons of different substances you come into contact with on a day to day basis. Most of them will not be harmful in any reasonable quantity. If paper or cotton clothing was invented today the parchment and wool industries would be talking up how it's not proven to not be harmful. Yes, some plastics are probably bad even in small concentrations. Just from a common sense point of view it's highly unlikely that all plastics are bad in all concentrations. No you shouldn't ingest it intentionally. Yes, I'd like to see less plastics in the world. No I don't think it's going to be a massive future problem. If it really does turn out to be a serious problem we'll find a way to solve it. Remember when CFCs were going to deplete the ozone and give us all skin cancer?