Agree with all points except the availability of plastic.

There might have been more wood, but the mass of plastic is enormous. I remember that it’s more than the mass of all animals. The value should be from this study, but it’s closed access, so I can’t check.

https://www.nature.com/articles/s41586-020-3010-5

The people feeding their families have done so without plastic for thousands of years. Even without plastic, they still have all other technological advancements available to them. Yes, it will get harder and it is unfair. But it’s entirely possible. And we can also fight that injustice. Tax the rich.