Whether or not this person's claims of discrimination are valid, this method of airing this kind of grievance is probably totally ineffective. This is your brain on not having a union.
To be clear, discrimination exists in this world and it should be abhorred, but if the thing 90% of your coworkers think when they think of you is "Oh, that guy who's always talking about X?" instead of 'That guy who built Y' - you've let your personal identity overwhelm your work identity, and it's not a good career move.