JF

why on earth should badly-paid workers put up with racist abuse in their place of work

Because it's part of the job? If someone has a mental health condition, diagnosed or otherwise, do you think care should be unavailable to them due to what manifests as racist abuse?

it's part of the job to be racially abused if you're a healthcare assistant in a gastroenterology department? in what world?

In the world where you have to interact with the general public, many of whom have mental illnesses or abhorrent views and poor manners.

every restaurant i've worked in has ejected customers and banned them for anything like this

Do you think there's maybe a difference between a restauant and a hospital, and the services those two places provide?

why is that at all relevant?

most hospitals and general practices (and clinics etc) in the UK have a general abuse policy that means any patient who has a pattern of abusive behaviour, racist or not, can be refused treatment