I probably misunderstood, but replied to this:
"no one can live on this planet without trading.... you can't be a good human being, do good thing, and survive."
which I understand to argue that no one on the planet can be a good human being and survive at the same time?
There are both (indigenous) people living directly off the land, and people within societies consuming very little, but still enough to not only survive but also have a good life.
So "no one" is not true.