I agree with chicken and egg. There was a recent study that men who drank caffeine filled 'energy' drinks were more likely to have toxic views about masculinity. Obviously caffeine doesn't make you sexist. But maybe toxic masculinity makes you more likely to put chemicals in your body that are seen as masculine.
Right, one of you has to put on the No Platform thing because I'm not in the UK. I will fly home to attend. 
Of course gender-critical women can have trans friends. One of my friends identifies as trans, doesn't mind 'she' and has no intention of getting surgery because, "there are too many penises in this world". She's a lesbian and I would happily share a prison cell with her.
It's not trans people that feminists have issues with. It's the reclassification of sex as gender, the penises in female spaces, the prioritisation of male issues over female, the shouting down of feminists, the shouting down of 'cissexist' issues like FGM, the male bodied people in female safe spaces, the way male-bodied people are now winning sports, prizes and educational opportunities AND the whole lady-brain/fixed gender roles being embraced.
If we rephrase that in a sensible way... sex is not gender, safe spaces for all, the prioritisation everyone's issues who are normally unprioritised, no shouting down of feminists but also listening to trans people's lived experience, the eradication of issues like FGM, safe spaces but safe spaces for all people, new sports, prizes and educational opportunities for trans people AND no belief in fixed gender roles at all; everyone can dress and behave as they please as long as it doesn't impact anyone else's safety and well-being.
Is that really transphobic?