I'm not an economist, but governments usually have what is called "monopoly on the physical means of coercion", there's geographic limits on human movement that

I'm not an economist, but governments usually have what is called "monopoly on the physical means of coercion", there's geographic limits on human movement that are much reduced for capital, and governments are more likely than not "too big to fail", a status only few corporations achieve. My point is not to advocate central planning, I'm a big fan of markets. I just think some defenses of them are very disingenuous and poorly thought-out.