while it is protected, most states have an at-will employment clause that says so long as they don't state a reason they do not necessarily have to give you a reason for why you were fired. So long as that employer doesn't put "disabled " in writing or recorded voice, then there is no case to be made against them.

I’m currently doing that. It’s no picnic and took a month to get a court date. A car accident on the job messed up my spine and head. The car accident was a semi trucks fault that was passing me on my way to a client of my job, and I still haven’t seen a cent, even though they literally put down my injury as the reason for firing me, then did a crap ton of illegal stuff as well all documented. Even with laws in place, sometimes you are forced to lawyer up, as many companies don’t follow laws, don’t care, and even suing doesn’t give money right away. People’s idea of how things should be, and how they really are, ate two different worlds. It sucks. And social security pays crap, leaving anyone in this position without help or as a lifeline is screwed. The government adopted the idea from a Christmas story “then let them die, and reduce the surplus population…!”