The point is they use communism as an ideal to rouse a revolution, then when the old government is gone, the new one takes over and is always much, much worse. The communist utopia is a lie.
The claim that co-ops are "more likely to succeed" is probably supported by some fancy redefinition of "success", or the fact that most people who start their own businesses fail because they don't know what they are doing. Co-ops do help spread liability around, but they are limited in just how "successful" they become, overall, compared to other types of businesses.