Philosophical belief in the Equality Act

[FemaleAndLearning]

Could believing that a woman is an adult human female and supporting sex based rights be considered as a philosophical belief under the Equality Act 2010? How would you prove this is a philosophical belief.
Could someone therefore be discriminated, harrassed and victimised under the Act for holding this belief that woman are adult human females.
www.equalityhumanrights.com/en/advice-and-guidance/religion-or-belief-discrimination#belief

Not lawyer but interested in the topic.

There are a few boxes a belief has to tick to be protected - off the top of my head, must be deeply and sincerely held, must be a belief rather than an opinion (never liked that one as by definition gives more protection to irrational beliefs than rational ones) and must deal with an important question or aspect of human nature/the world, not something trivial. It also has to be compatible with a civilised democratic society, which is how the law avoids protecting, for example, racial supremacist beliefs. It is probably on these grounds that TRAs would object cos we’re awful bigots and all.

I don’t think there’s any case law yet confirming the law protects GC feminism as a philosophical belief, although there probably will be soon with all the suings and court cases.

Hasn’t been tested yet, to my knowledge. Has McKareth v DWP been the closest so far?

Isn’t Maya Forstater’s case using this premise? It’s the test case I think.

I've been thinking about this too - can you believe in climate change or refuse to believe in facts around climate change and claim to be a flat-earther or climate change denier as a religion or a personal belief that runs so deep to your core being it is like a religion?

Also cults are called religions on the inside and Scientology is a recognised religion but is cult-like and followers could claim that as a defence under the EA?

If we all our gender critical as our religion on the upcoming census would it become a recognised religion is there is enough of us?