Its so dumb. "Human nature" according to who? Ignoring that appeal to nature is a logical fallacy its also just...fake. humans are social obligate primates. We naturally form small communal groups. We've interacted cooperatively and altruistically since before we were anatomical humans. If capitalism is human nature why did it take 19,700 years for anatomically modern humans to invent it. Because for one thing, commerce is not the same as capitalism. And even commerce is somewhat recent. Most of human history we didnt barter, pre-money barter economies are a myth. We had "gift economies" where we simply helped and gave each other what we needed. Without explicitly demanding a return but understanding others will help you out the same when you need it.