Earlier quoted context omitted.
What externalizes? Most talk of the externalities assumes some quantity that exists somewhere, but without a good reason to believe they exist why should we? A simple example is the current cost of recycling plastic: it's too expensive so it won't happen. Consequently putting these on the sheet as an externalities doesn't make sense Forcing it to happen is probably nonsensical, why not fund research into plastic recy…
It seems you either don't know what an externality is, or you don't understand how plastic is an externality. In the second case, I literally cannot help you. Try to imagine yourself as a member of the ecosystem which is actively collapsing? The oxygen you are breathing isn't made in a lab. The creation, purchase, and disposal of plastic has consequences for people that are not involved in that chain, and therefore h…
[0] e.g. If I dump 100 PET soda bottles into the ocean how many humans would be inconvenienced, how many fish killed? My napkin math says essentially none of either.