PHILADELPHIA — The environment sowed by Kanye West and Kyrie Irving — that antisemitic vibe casting a cloud over the NBA — has sent Daniel Hazan into feelings of sadness and doubt. As the NBA’s only orthodox Jew player agent, Hazan has been forced to ask himself recently, “Do my clients think I’m manipulating them?” Advertisement “Do they think I don’t have their best interests at heart?” “It draws a level of concern for me,” he told the Daily News. Advertisement Kyrie Irving has been suspended by the Nets for five games. (Noah K. Murray/AP) It’s difficult to gauge the...