I have 50 years of programming, co-authored 4 commercial languages, many technical papers, years of research, lead developer on open source, work on hardware (F

I have 50 years of programming, co-authored 4 commercial languages, many technical papers, years of research, lead developer on open source, work on hardware (FPGAs), robotics, operating systems, and AI. When I get the results of my interviews it always includes the phrase "not a good culture fit" (translation: too old). When I tried to join a class action suit against one company the lawyer told me that the language was VERY specific and would exclude me (and many, many others).