Of course his right to say hateful things must be protected. But as a member of a community that values insightful comments, I feel obliged to point out that his opinion is based mostly on his personal hate and ignorance.
Asking for a limit on immigration from islamic countries to or developing alternative energy sources still is pretty objective to me. But adding the " the Arabs will just go back to what they were before - a bunch of desert nomads with no real power" makes it obvious where he is coming from.
Look at the thread, the responses and the clarifications. The least useful answers in terms of education value are the ones which focus on whether he was or isn't a bad person for saying it.
As I also point out, your concerns are handled when he gives up the moral ground. you don't have to follow something you know is wrong.
Asking for a limit on immigration from islamic countries to or developing alternative energy sources still is pretty objective to me. But adding the " the Arabs will just go back to what they were before - a bunch of desert nomads with no real power" makes it obvious where he is coming from.