This appears to be an endless series of challenges.Those member of the socialist dir who oppose full blown socialism are still include. We are talking about who would be excluded from a capitalist dir? Barterers? People who believe in a gift economy? I can see that but who else?
Perhaps word association should be the test:
If I say capitalism, & a poster thinks "love", "liberty", "me", or "Hubba hubba", then one belongs.