Mondragon is often used by people who don't know much about the subject as a counter example, but if you look under the hood, you'll see it doesn't even compare: Less than half the workers own shares and the majority of shares is held by a small circle of executives in the richest branches. That's basically a standard capitalist pig with some socialist lipstick to give pseudo-Marxists an argument in these discussions, when there is none to be had in the first place. In fact Nvidia has a higher percentage of employees owning shares than Mondragon. Would you call that "worker-owned" too?

None of this should be surprising either, because anything that truly benefits workers will be at odds with things that benefit the business. In society there are always people who primarily get paid and people who primarily work. Even the real Marx realized that. If you really want to defeat capitalism, then you have to do more than just play pretend.