I don't think he's being blackballed because of the subject matter of his protest. I think the owners probably have a problem with the way he is protesting. He's protesting while he's on the job. He's protesting while in uniform. If he protested away from his job on his own time, I don't think the owners would have much of a problem with it. I don't think my employer wants me to be protesting while I'm at work. When I'm at work I feel I'm representing my company in everything I do. It's best to do any protesting when you aren't at work.