The problem with fascism isn't the economic system underpinning it but the authoritarianism that leads to oppression. A Marxist one party state would result in the same oppression, and makes this meme pretty disingenuous.

The sweet spot where any form of government is strong enough enforce fairness without turning to oppression is, as it turns out, pretty hard for us to figure out.

While Capitalism might be relatively new in the history of humanity, greed isn't and and in many ways Capitalism can be argued to be just greed as a virtue.

Now greed, that in many ways has been described as the root of all evil. Yes, there are arguments about Pride being worse or more fundamental, but greed is persistent and eternal in how often it comes up.