Capitalism doesn't need any support: it is the simplest, almost trivial economic system. All other more complicated systems degrade to capitalism if something goes wrong.

Slaves built the building and the foundation too

I see it as sort of the flame just before the magnesium catches. It's only blowtorch from here on.

What never studying anything and then talking about it does to a motherfucker.

Offtopic: I like how the people standing in front of the building, where it would likely fall, wear helmets. Like „Oh no, the building might collapse onto us, we better wear helmets.“

No? Early communalism is the simplest system. Capitalism is only a few hundred years old, and required advanced production from feudalism, which in turn required advanced production from early agricultural societies, in order to exist.