I'm not under the impression that "the same system we have now but a bunch of worker coops" would be some kind of ideal society, but it's far and away a better business structure than the ones we have now.
What are the barriers to successful coops being established?
The average American has never heard of coops, and if they have it's like one weird hippie food store. Capital ownership is the default.
This isn't entirely by accident - when software engineers looked like they were getting coop-y ideas, capital made a huge push towards legitimizing VC as the default sensible way for them to operate - but a lot of it is just boring cultural inertia, and not that hard to push back against.