You might try peddling this baloney to the Scandinavians, who are quick to say that they operate capitalist economies. Let us know how they react to being told that their economies "revolve around injustice" and are "predicated on winners preying on losers."

Sustainability can be achieved only by efficiency, not by abstinence. Homo sapiens is an invasive species. We will share abundance, but we will kill to escape scarcity. We will be at relative peace so long as the technologists can stay ahead of Malthus. But when he catches up to them, heads will roll.