I contacted several attorneys, none of whom would consider taking the case, or even bother to discuss the details with me. One of them told me that, at least in North Carolina, an employer would effectively have to get on the stand and explicitly confess taking adverse actions against me specifically because I had been diagnosed with MS. Any other remotely plausible excuse would provide them with all the cover necessary.
It was only much later that I learned that I would have had to have filed a complaint with the EEOC and NLRB within 180-days, and allow them to investigate my claims fully before authorizing such a lawsuit to begin with, as without such a determination I could not file the suit anyway. None of the attorneys I consulted even mentioned this absolutely critical first step, which suggests that they had even less faith in a successful outcome.
Maybe it’s different for facilities and regulatory enforcement, but in my experience, at least for labor, the protections are incredibly weak.