You got me.

Would you be willing to rethink this view if you knew that economic theory and history have a different view?
I would have to be insane to look at something that is working nearly flawlessly in praxis in 30+ countries, and then to change my opinion to: actually it doesn't work, because of theory.

Theory is great to get a basic understanding of something, but even in fields that are much less chaotic than economics, you always test your math with scale models and real world observations, because it never shapes out exactly like you think. To have 30+ full scale models, but instead of looking at them, you ignore their existence and try to explain why they actually shouldn't work with theory makes no sense.