I think it is unfair to judge a professional athlete on their political preferences. If you are a fan of Tom Brady, you are probably a fan because he is a great football player and a great leader in the sport. If you are a fan of Tom Brady because of his political and social contributions, you may be disappointed to learn that Tom Brady supports Donald Trump.
I think we depend on professional athletes to be moral and social leaders in the United States, but this is not what they are paid for and not what they are good at doing.