This is an old vacuous argument. By this logic, if I take a moral stand against abortion, it is because I secretly want to murder babies. If I take a moral stand against thievery, it is because secretly I want to steal things. If I take a moral stand against murder, it is because I want to kill someone.
Makes just as much sense, doesn't it?
Did you read
post 5, seems the quiz allows for moral objects and not wanting a homosexual room mate, for example. So in other words you're making a vacuous argument and jumping to conclusions about the quiz.