Yup, it's only after the beginning courses that the professors say "hey, capitalism isn't this multi-faceted historically informed system, it's actually just private control of the means of production." Yeah I switched majors to history and politics but me switching doesn't prove anything, capitalism is well defined from beginner economics classes to post grad. Capitalism was literally named and defined by Marx and his contemporaries on the left, who often noted its advantages and didn't have contentless moral arguments against it. I've named economic anthropologists from Marcell to Polyani, economists from Marx to Mankiw to Friedman. You've only named ancaps that agree with you. Why do you keep saying I'm not backing up my claims when I literally am?

But to prove my point, name someone and link to a source that would consider medieval Iceland or Ireland stateless capitalism that isn't an ancap. Seriously, you need to do that in order to actually make a point. I'm an anarchist, an anti-state socialist and yet I can point to Mankiw or Krugman or Keynes or Marx or the Zapatista movement against globalization or the Kurdish movements currently happening or the prior Spanish revolutions or the imperalism of the America's and India and yet all of us will know what capitalism is and from our understandings of it will come to our own conclusions. You're arguing nothing, you can't back up what you're saying unless you prove it. What are you actually trying to say? What logical fallacies am I committing when I can point to so many sources and real world movements and you can only point to ancaps that are isolated amongst yourselves?