Well the conservative leader has announced should get party be elected at the next general election she plans to pull the UK out of the EHCR.
While this is being done they say to allow immigration control, it will erode the rights of disabled people.
While currently the UK would still be signed up to the United Nations Convention on the Rights of Persons with Disabilities (CRPD), removal of the EHCR could mean it's more difficult to take public services to court and would result in lack of protection and access to legal reviews.
I know reform have also stated the same.
Also would mean that problems/issues would not be monitored or reviewed other than by the government in power.
We know how well politicians are at being open and transparent, and for protecting the vulnerable in society (tones of sarcasm should be clear).