By Alek Arend If James Harden keeps this up, he’s not going to have many allies by the end of his illustrious NBA career. At the end of Harden’s stint in Houston, he basically alienated himself from the entire organization and forced a trade to Brooklyn. In doing so, he burned bridges and lost friends. Apparently he didn’t learn his lesson. Today is the NBA’s trade deadline, and Harden is without a doubt the biggest name to watch. He reportedly has grown tired of trying to make the three-headed monster – Kevin Durant, Kyrie Irving and Harden – work. The three have each been injured or absent f…