I agree with you, Tom, that the situation for people with psychosocial or intellectual disabilities is more complex. There have been supported work programs that seem to have success. But it requires more flexibility and understanding on the point of employers. There is a learning curve that can even be more idiosyncratic than the learning curve on things like physical accessibility. And then there is the issue of self-disclosure. People with mental health issues may be afraid to ask for the accommodations they need from fear of discrimination
My wife, when she was the research director at the National Disability Institute, was working with employers who were actively looking to hire more people with disabilities but said they couldn’t find them. They wanted to create a “pipeline” of people with disabilities. I had problems with THAT idea, but on the other hand other than just advertizing that they were open to being inclusive employers wasn’t working for them.