The dishonesty of comparing discrimination on the grounds of any of the other things to that based on sex is so dishonest. Disability is rooted in medical / physical issues and money well spent will enable people with disabilities to function to their full potential. We have a long way to go on that - as with everything, capital expenditure is easy, paying people is the challenge. The problem for disabled people is less social discrimination that the government failing to put money where its mouth is.
All the other things are spectrums and socially constructed - including race, though race defined around skin colour, or race defined as being a Traveller, are certainly still areas where the intolerant can make life hard for people.
But sex is sex is sex. Not a spectrum, not something anyone can opt out of, and a world where 'male' is seen as synonymous with 'human', and women as varying from the norm throws up many problems. Disabled, working class, same-sex attracted, Traveller, minority race women have an extra challenge compared withd, w-c, s s-a, T, m r men, because of their sex. Indeed, d, w-c, s s-a, T, m r men may be among the people putting obstacles in their way because they are women.
And so it has been for centuries. God, Varadkar hates women, doesn't he?