Who says those legal systems necessarily need to be run by a State?Anarcho-capitalism looks contrived as capitalism requires legal systems to ensure private property ownership, limited liability, etc.
So what does that prove?Meanwhile, fascism may work against Communism, and vice versa.
Total hogwash.Libertarian may be left or right.
They have most things in common and quibble over trifles, in order to maintain the illusion of competing interests.Liberals and conservatives might have some things in common, like personal freedom connected to economic freedom. They may even have ideologies that work together, like neoliberalism and neoconservatism.