Earlier quoted context omitted.
Monopolies are the end goal of capitalism
Monopolies are broken by capitalism just as much as they're created by capitalism. The whole "end-stage capitalism" schtick is wrong because a free market will lead to the ossification and then breakdown of a monopolist. You just have to finish spring semester of Econ101 to find out how.
Capitalism is about private ownership of the means of production, no? Maybe the definition changed in the US?