that kind of nationalism, if you will, is common for non-religious people. The religious fanatics from any average Arabic country get along with their turkish "co-workers" just fine.
Well, not all of them suffered from the ottoman rule, plus, for many of them the Sunni islam plays a very significant role which makes it easier to forgive and forget
The Arabs from different countries are too different from each other in terms of religion, culture,history, goals, etc. to get united. It's not 9-10th century