If you really want to be effective, stop buying Cowboys merchandise and email DallasCowboys.com and let them know you're boycotting Cowboy merchandise until things change. Quit going to games and let Valley Ranch know that, too. While you're at it, quit patronizing the Cowboys' sponsors and let them know it - it doesn't do any good to be quiet about your boycott.
Gets great results and doesn't cost you anything. The key is enough people letting them know what they're doing and why.
Giving this Billionaire your money will only encourage him to continue what he is doing but when he sees revenues decreasing every month, it will eventually get his attention.
Spread your boycott to other furums and encourage them to join you.