Speaking for myself, I am not anti trans people. I want them to have fulfilled and happy lives, with proper access to benefits, employment, etc etc.
Transphobia is hating trans people for being trans people and wishing them ill.
However, I am not happy with the damage that trans ideology has done to women's rights and to children. In no particular order:
Natal men in women's sports - they have a massive unfair advantage even when on oestrogen etc;
Natal men in women's prisons - far too dangerous and a massive loophole;
Natal men in women toilets, changing rooms etc - again, a massive loophole though which dangerous men or men with unpleasant fetishes can contentedly stroll;
Natal men in women's groups and clubs - their presence will shift the tone;
The impact on the minds and bodies of children and vulnerable young adults, with irreversible surgeries and drugs with irreversible impacts being given to very young people who would never, for example, have been considered old enough to make decisions about sterilisation.
All those concerns are not transphobia. It is not transphobic to be suspicious of men who wish to be in women's spaces (because how can you tell who is 'true trans' and who has nefarious intentions?). Resenting TRAs who try to intrude into female spaces isn't transphobic either.
Women need women-only spaces. We are physically weaker than men (hence separate provision in sports, prisons, toilets). Many of us have been sexually assaulted, and would much prefer to change, or go to the loo, well away from the male gaze. We want to to talk about medical issues amongst ourselves. And so on.
MN has not been 'captured by anti-trans ideology'.
It's a space where women who share the concerns that I have outlined above can get together to discuss them. For a long time, we had to be careful what we said, or our posts were deleted or we got booted. It was a conversation that it was very hard to have. Women were pilloried and doxxed for trying to have it. The left-wing press completely betrayed women, and we haven't forgotten.
And you probably know all that, so you've effectively wasted my time.