To govern is to make rules and to enforce them. You object to the very idea of limiting companies choices to do whatever they want by setting up government regulations, like you can’t hold slaves and child labor is forbidden too. Which is something corporations would absolutely do and did in the past until governments stopped them, if necessary with a war. So it’s ultimately the military, which stands for the rule of law and against total anarchy's. By definition anarchy is a state of disorder due to absence or non-recognition of authority or other controlling systems. There is no order without an authority enforcing the rules.