This [harmful in-group vs out-group effects] is only true if you fail to understand the internal needs of the segregated group.

No, its a documented and highly scientifically backed effect.

If the only result you care about is how it effects out-groups, then you misunderstand how healing and political movements are created at the earliest stages.

Its not the only effect that I care about but I do care about it.

How do you think political movements are formed if not in small groups meeting privately?

Political movements are value neutral, or at least subjectively perceived as good or bad depending on who you ask about which movement.

If you want to say that the harmful in-group & out-group effects are a worthwhile sacrifice to achieve other ends, that’s one claim I could see as understandable but I would want to know the specifics of what the actual end goal(s) is/are before I’d support it. Further, the main way a political movement actually grows and achieves positive things is to broaden their support typically. If they lean into leveraging power they might have over a majority they’re using might makes right logic. I can certainly see the utility of that if you view the majority as stupid or evil and I’ll even admit these days its hard not to feel that way given the state of my country. At that point though I don’t even see the point other than cynical power games.

Who are the dis-empowered non-woman that are being disenfranchised?

NB’s & men who fall into disenfranchised categories like bipoc, lgbt, homeless/impoverished/working class, and probably most relevant to gender issues is the neurodiverse male population. Not to mention that creating an exclusively women space can attract TERFs, where they can spread their bullshit more efficiently by leaning into the in-group & out-group effects.

Women’s issues is gender issues. Gender is like any social construct, its defined by relationships and collective beliefs.

What feminist literature have you read? Who are your guiding lights in the movement?

My feminism? I was critiquing the feminism you are defending that would justify an exclusionary in-group. I’m suspicious of why you’d want to ask.

If you must know, I tend to agree with Xenofeminism. Its the form of feminism that embraces rationalism, any consistent Xenofeminist would agree with me here.