I've got teen daughters, they're v GC, as are all their sporty friends. They're not stupid. They know the cut off times they need to achieve in their sports to make selections and they know the boys' times are out of their reach.
They have zero desire to share rooms, tents, changing rooms or toilets with boys and men. My girls and their friends are really into their privacy and won't change on a beach or next to the pool for example, they want and need privacy as they get used to their changing bodies and the unpredictable vagaries of menstruation.
They've got friends at school who are all part of the LGBTQIA+++ Club and they're all girls who 'go out with' each other and wear furry cats ears and watch manga. Not one of them is actually in anything like a relationship with anyone, they just hang out together and get a lot of kudos and protection for being part of the group. It's a safety and group identity thing, the like of which has gone on in early adolescence since the dawn of time. These girls also know what a girl is, and clearly value close female company (and they may grow up to be lesbian, who knows/cares).
I have responsibility for students at work and they're also well aware of the impacts of being female in the workplace, the impacts of single sex provision on women of different cultural and religious backgrounds etc, the needs for female staff members for mixed groups of children.
When you are clear with your questions and your language, you will find that not many people are up for giving any men, however they identify, blanket acceptance into women's spaces and categories. Look at the comments on articles such as Ellie Gomersal in The Times today. No one thinks this doesn't have impacts that needs considering.
I'm only in my 40s, I'll be alive a while yet I hope. I'm not going to change my mind on this fundamental issue of reality. I cannot see that my bright and critical thinking daughters, to whom sport and privacy matter so much, are going to be persuaded. My mum is 75 so possibly fits in your category of people to be ignored, but she's fit, active, articulate and very involved in her local community activities and church. She's not stupid or to be dismissed easily. She's worked in safeguarding and social work all her life and absolutely knows what a woman is. Women who grew up in the 50s and 60s know a lot about male abuse of women unfortunately.
You are wrong wrong wrong. Women are not going to just let this go. We are not going to give in and agree. We are going to fight tooth and nail to prevent this harmful ideology going any further to remove our rights.