Why is some hate understandable, but other hate not tolerated?

I think it is ironic that for example, in this country it is okay to hate Muslims. The media does the public a enormous disservice by telling us how much the Muslims hatres Americans. But ironically the first Muslim country to weep for the US after 9/11 was Iran. I am not saying Shariah is the best thing but I think the people really should think about what information is being shown to us. But how come no information is shown as to why people really dislike particular people who practice the Jewish faith? If you are a proprieter and you get constantly haggled on your prices by people who happen to have the name Lowenstein or Goldberg, you may feel a little resentment. Your resentment may grow a little more when you go to a shop that is owned by someone of Jewish faith and they kick you out for doing the same thing. Why is it the end of the world as you know it were you to resent behavior of that nature, but if you are against Muslims, you are an American? Personally I wish we were all