I didn't say that. I said in your specific scenario it would be better, perhaps to rely on the PC of age or disability than Sex. In most circumstances Sex would also come into play.
When you say menopause is not a disability I would suggest that for some women it does fall within the definition of disability under the Equality Act.
You're disabled under the Equality Act 2010 if you have a physical or mental impairment that has a 'substantial' and 'long-term' negative effect on your ability to do normal daily activities.
There's no ffs sake about it unless you are totally downplaying the health affects it has on some women. The fact that it is a natural part of being female doesn't mean it doesn't impact in a way which brings it within the remit under the Act.
Having a pc of menopause add's nothing at all to the situation for women, when the discrimination can be addressed by other PC's.
Pregnancy does need special protection because of the lengths of time women take out of work after giving birth.
I actually can't get too fussed either way of creating a specific pc as women are protected either way.
This is much less of a priority, in my opinion, that the amendment that is required to ensure single sex spaces for women. Women are actually being harmed as a result of that bad law.