Female only spaces are more than just toilets, though given there are men who install spy cameras, and men who rummage through bins for used sanitary wear, I very much want female only toilets. But there are also prisons, refuges, mental health units and hospital wards, personal care for the elderly and vulnerable, where safety and dignity may be much more of an issue. As well as sports, where it is just plain unfair for women and girls who train long and hard to be forced to compete against bodies with a male advantage.
I've not had my period at several times in my life. When I was younger before they had started, when I was on contraception and they stopped, when I had an eating disorder and my weight dropped too low which happened several times in my 20s and again in 30s, and then when I was pregnant. Not once of those times did I feel any offence at either being called a women or hearing that only women have periods, nor did I feel my status as woman was under any threat. Women who have their uteruses removed have never designed a mass outrage campaign towards anything that describes women as having a uterus.
I didn't plan to have dc and wasn't even sure I would be able to get pregnant (though I did in the end), and never felt the need to jump into conversations about how only women can carry babies and breastfeed, and tell them they were excluding me, because I knew they weren't. Nobody cared before. We all knew that saying only X can do Y is not the same as saying all X do Y or X = Y.
Reducing women to body parts and functions is dehumanising, and we get told that's what we are doing, when we are not. We are saying women are adult human females who can do, wear and be as they please but our biological reality is still a reality. They are the ones literally calling us menstruaters and uterus-havers.
Cis - this label has been forced on us. Recently there has been a switch to describe this as meaning "not trans". Initially we were told it meant "a person whose biological sex and gender identity align". That didn't work as so many of us said we did not have a gender identity, so they're now trying to get around that by saying "oh it's just another way of saying 'not -trans'". It's not, but they are set on making us as a subset of our own sex, often using racist arguments to do so. We aren't allowed to use the word "woman". The dictionary definition of the word used to describe our biological reality has been called hate speech.
We are told that "genital preferences" are transphobic, and they're not even subtle at directing this mostly towards lesbians and trying to shame them into accepting men into their bedrooms, which is pure rape language.
Children are being taught that if they don't match up to a narrow set of stereotypes, they may be trans and they can be "fixed" with life long drugs and surgery causing irreversible changes to their body. Autistic, homosexual and traumatised children are especially vulnerable to this.
Meanwhile, people who more commonly would have described themselves as transsexual and many of whom accept their biological sex for what it is, and some of whom geuininely do just want to get on with their lives and want children to be left alone, are being demonised by the groups that claim to represent them and told they're self hating and transphobic, despite being trans.