Do you consider it a solution that if somebody doesn't like an OSS project's current direction, or contributor list, they could fork it and do whatever they want with the fork?

>I think the poster is holding a pretty untenable position but I'm trying to softball it, because I could be much harsher about it.

I don't understand how that position is untenable. It seems to be a meritocratic line of thought, IMO. There could be a problem with how "merit" is calculated? Or you believe that ideas, contributions which have merit are denied / ignored because of the gender/ethnicity of the contributor?