I don't think that is a good metaphor. There is a significant difference between forcing a company to provide equal service to everyone regardless of skin colou

I don't think that is a good metaphor. There is a significant difference between forcing a company to provide equal service to everyone regardless of skin colour and forcing them to provide additional services for the benefit of disabled people. In the former case they'd just be being racist and nasty by refusing to serve black people with their existing product, in the latter they may not actually have this additional service - eg. they may not have closed captions for their video yet, or there may be technical restrictions on why they cannot provide them, etc.