I disagree. Capitalism is a very specific, recent invention. You are living out the actual quote. I don't care if its nature - in my estimation, it fucking sucks!

Your argument works just as easily for Kings, Slavery, and every other horrible thing humans have done to one another. Capitalism is not in any way, shape, or form necessary to human existence. It would be like saying that Prime Time TV is "Nature" and worthy of almighty consideration. I pray I get to live to see the end of all of the above in my life time.

I've said my argument about as cleanly as I can! It's a complicated topic, and I encourage you to continue reading about it.