We need to recover what we’ve lived most of our existence as a species — that we are one small part of life, and entirely dependent on larger living systems. Aboriginal/indigenous peoples most all had/have that basic understanding — “the land is chief, we are its servants,” we belong to the earth not the other way around, all life is our relations/kin in various ways, and so on.
If our implementations of “stewardship” assume any ownership, they fall short. And, that’s probably about as close as we can get conceptually in our culture. We can’t grok not ‘owning’ everything, any more than our aboriginal/indigenous ancestors could grok anything being ‘owned’.
Our contemporary ‘-isms’ are abstractions that we use to bludgeon each other. Their etymology is irrelevant — it’s how we can use them as pejoratives that matters.