Hmm... there is a misunderstanding about U.K. equality law: It Is Not Equal.
Ageism is never protested about, universally accepted and practiced,and institutionalised to the point it is virtually an official government policy.
Disablism was covered by the brilliant, beautiful, Disability Discrimination Act, which was never enforced, and then was theoretically absorbed within the single Equalities Act, but in fact, reversed.
It is normal to find over-entitled aggressive breeders refusing to allow wheelchair users onto public transport. Sir Trevor Phillips wrote that discrimination against disabled people "is universally practiced... socially accepted... normalised... institutionalised.... and in it's effect on people's lives, is, in many ways, far worse than racism" He was at the time Chair of EHRC.
Sharmi Chakrabati (sp?) was far too effective, in making racism the single equality anyone knew or cared about. (The bitter irony is that what started her interest in equality was observing a fellow law student whose studies, and participation in student life, was made virtually impossible, merely because of being a wheelchair user)
Equalities from then on meant only one; Racism, much "more equal than others", and the only one enforced by police.
In recent years, and without Parliamentary approval, the Stonewall ideology has achieved the same status, of eager enforcement for a non-law, i.e. that males can transform themselves into women, and are entitled to enter anywhere they can access naked women and children.
'Rights' are only enforced if there is money and will to do so. Unions, having always been shockingly sexist, will at least fund some legal advice on any case, even sex discrimination, as an affordable exercise in power. But only in relation to employment law.