I would bet that most of the people buying Kap jerseys did not even know the shape of a football. His negatives are so high, nobody wants to take on the media storm and potential locker room disruption of a back-up QB. Plus, you would anger a lot of fans of most teams.
Whether I find his displays repugnant or not, I support his right to make his misguided expressions. I also support the right of any owner not to hire him.