It might be a lack of education (not a value statement). Socialism in Spain was not established at once. It was an effort spanning many decades.
If we would suddenly find ourselves in a medieval kingdom we would certainly need time (and help) to adapt to that system. Likewise, people from that period would need time (and help) to adapt to ours. Regardless of whether it is better.
Note that Mondragon is not a socialist enterprise. It's not obvious to me whether you're saying it is, but I think one of the interesting things about Mondragon is that it's somewhere in between the socialist-capitalist dichotomy. If you came along and said "good news, the state is in charge of all your businesses now" they would not consider their mission accomplished.
Socialism traditionally meant workers control over production. To the degree that Mondragon is democratic it is socialist.
Socialism came to be commonly associated with "State-capitalist monopoly" (Lenin) later in the 20th century but that does not describe revolutionary Spain at all.
There companies were mostly worker owned, democratically managed and freely associated within democratic regional and industrial cartels representing consumers' and producers' interests respectively. Highly advanced democratic systems. Larger companies were expropriated compulsory. Yes. But they were transferred into the ownership of the workforce. While smaller companies generally were free to operate as "private" enterprises though at a certain size that rarely made sense because all of industry was structured to serve democratically managed industrial operations.
Socialism is about social control over production, not worker control. That's the big difference here, so it's relevant to point out. A co-op gives you worker control within the framework of a private ownership society.
It might be a lack of education (not a value statement). Socialism in Spain was not established at once. It was an effort spanning many decades.
If we would suddenly find ourselves in a medieval kingdom we would certainly need time (and help) to adapt to that system. Likewise, people from that period would need time (and help) to adapt to ours. Regardless of whether it is better.