If you know of an incident, each time you find out about an incident----write: a letter to the editor of the local and major newspapers, call or email your local representative, your congressperson and your senators. Get a few friends together or stand alone in front of your state capital/police department to protest. Ask the editors of a good local newspaper or magazine to do an article on this issue. And USE the ADA (Americans With Disabilities Act) when you need to at work and in the community.
Also, find out if anyone in your mental health system is actively working on this (you may be surprised). -----------and remember, it takes t-i-m-e and it will be frustrating but also rewarding. Do some research and do a presentation at schools/etc...
[these are suggestions----but some of the necessities to making change]
And remember, an anti-lyncing act was dismissed in the US in the past and took ?how many years?a century or more? to Pass.