I subscribe to the idea of comparative advantage, but I also subscribe to the idea of welfare losses of abusive monopolistic behaviour, which all of these platf

I subscribe to the idea of comparative advantage, but I also subscribe to the idea of welfare losses of abusive monopolistic behaviour, which all of these platforms quite openly and obviously aim for. And being a member of a coop does not require expertise in the core competence of the coop itself. It requires understanding that the existence of the coop is beneficial for you. Heck, I am a member of a major food market coop, and I have zero knowledge (and interest) of food supply chain management.