if group is defined as half the world, them group needs to be half the story, and half the in charge. If a fifth, then a fifth. etc.

Yes, that is your definition of 'enough'. It wouldn't be mine. So before we could even have the argument (which I don't want to do) we would have to negotiate about what we wanted in terms of 'enough'.

as to the rest of this comment... I can't see how it's a reply to what I wrote.

Sorry. Someone gave me caffeine today and my brain is very fizzy and probably I am making cognitive leaps that I'm not explaining out to people who aren't me. It made sense in my head. You maybe need to be me to see how it is relevant.