There’s a big difference between changing your jersey colors or your logo design versus adding a symbol that forces the team members to promote homosexuality telling them that cannot play. I don’t think kneeling before the altar of sodomy was a prerequisite for joining the team.
Personally, I think anyone who values their Christian faith would do well to shed any national identity here in the U.S. of any kind -- in terms of recognizing national sports teams or even the moral legitimacy of their own government.