Was he blaming anyone? He just pointed out the mirror of what you did: as the owning class acts one way, it will naturally produce material conditions that incentivize the working class to act in a way that would lead to the destruction/dispossession of the existing owning class (i.e. a revolution).
Maybe the author was -- or maybe not -- but for a large number of people there is an implication that one could "blame" corporations for being selfish, self-serving, criminal, clueless, self-destructive, leading to social ills, and so on. But who established the rules for the corporations? It depends how you ask: previous people, previous systems, the progression of history.
My claim, put another way, is that if you trace the causality back a few steps, you land at the level of the system.
Anyhow, the question "who do we blame?" can be a waste of time if we use it only for moral outrage and/or a conversation stopper. Some think "what caused this?" is an improvement, and I agree, but it isn't nearly good enough.* Still, it isn't nearly as important as "how do we change this with the levers we have _now_?"
* Relatively few scientists understand causality well, thinking the randomized controlled trial is the only way to show causality! The methods of causality have developed tremendously in the last twenty years, but most scientific fields are rather clueless about them.
