I hate capitalism as well, but the things he is saying kinda feels like arguing dynamite is good for mining. It is good at mining, sadly mainly used for evil now. Same for capitalism, used for evil, but not everything about it is negative/evil.

Quasi nothing has purely downsides, it would be disingenuous to say otherwise. ( unless you want to make a strawman argument for e-coli or something)

I took his conclusion to essentially be that this is the only possible end state of capitalism at least.