Yes, my point was focused on his #3, since I do not think his #2 is all that persuasive, especially absent #3, and wrt #1, markets are institutions, how they affect power relations depends on how they are allowed to be used.

Instead of asking why co-ops are a rarity, ask why commercial corporations are so ubiquitous, and an environment of normal headlong quarter on quarter economic growth with stagnation and downturn a relative rarity is clearly part of that ~ the idea that the same advantages apply in a condition of growth primarily occuring in technological efficiency waves and so growth being less common than stability is just an untested speculation.
 

I've been accused of being a Marxist, yet while Harpo's my favourite, it's Groucho I'm always quoting. Odd, that.