The problem is of cause that capitalism is a fiction that have never existed in the real world, with the "movement" that calls itself capitalist being captured

The problem is of cause that capitalism is a fiction that have never existed in the real world, with the "movement" that calls itself capitalist being captured by the mercantilist it was supposed to oppose as soon as it started. And mercantilism which is what most economist is promoting as capitalism is basically feudalism by economic means and as such pretty much inconsistent with democracy the second you have a zero sum economy(which the west will for the foreseeable future be facing), especially when you remember that feudalism rose out of the concept of hereditary property not divine right(that came much later) as most textbooks state. Weather capitalism is compatible with the real world is a much bigger question that few economist dare to ask because the last one to do so ended up founding communism as a response to the complete failure of Smiths actual ideals to survive in the real world.