> You can view women as a group or tribe, competing against other groups or tribes, or you can view each person as an individual with one of the characteristics being gender.
This distinction results from a poor understanding of what you call the "collectivist view". This approach does not view a social group as a constructive set -- a tribe as you call it -- but as an empirical, emergent set. The idea is that certain shared experiences that arise in society create a correlation of viewpoints and goals. Note that this isn't a statistical construct alone but also a social construct. If social dynamics give rise to certain shared experiences, then the shared experience would likely give rise to certain shared views and goals. Once again, this is not a philosophical question, but an empirical one. It either really happens or it doesn't.
Either women statistically have common goals or they don't (they do). This isn't a tribe also because a single person can be part of many such correlative social groups. A woman could be working-class and share goals with other working-class people (men and women).
In other words, I don't think that there is a difference in philosophy, but a difference in a philosophy vs. empiricism. One side says that philosophically every individual is on his own (based on the premises that the people holding this view seem to accept), while the other groups says, well, maybe, but in practice there are clear group dynamics that arise and can be seen empirically.
> One woman isn't really helped by another woman being in the government.
How do you know?
> The tribal point of view does the opposite: rather than de-emphasising characteristics irrelevant to the situation at hand, it amps up those characteristics in a tribal us-vs-them conflict situation.
Nah I think that that's just the common description among those who oppose the liberal view, and is usually a result of failing to notice what the demands really are. It's not us-vs.-them but a group that is empirically and statistically found to have opposing interests to those of another group. What you call "tribal conflict" is either empirically found to be real or it isn't; I don't think it can be argued against based on some philosophical notion.