This doesn't work in real life. Your scenario would apply just as well to not serving "blacks" and "coloreds". Well if they don't like it, they can complain to management and it will get fixed when they feel like it.
It is a totally different thing to deny someone service based on factors they cannot control as skin-color or disabilities, than to not extend your service to take every group in the world into account.
If i develop a service that is useful to a lot of people, I shouldn't be punished for not taking into account every possible user.
I am not saying that deaf people don't deserve to be able to watch movies on Netflix, but I think that Netflix should be encouraged through grants etc. to make the site more useful for people with disabilities instead of forced.