The reason that some groups are socially and legally protected – and the reason why we have universal human rights – is because some groups of citizens have historically been vulnerable to political abuse and are structurally discriminated against. The aim of human rights instruments is the protection of those vulnerable to violations of their fundamental human rights. The recent United Nations inquiry into the UK government’s systematic violations of the convention on the rights of persons with disabilities concludes that disabled people in the UK are facing systematic political discrimination, social exclusion and oppression.
Source: Some thoughts about words and discrimination: ‘parked’ and ‘vulnerability’