Speaking of the GCC, I would not go as far as saying there is a paranoia towards Turkey. However, because of the Muslim brotherhood and the ill-treatment gulf Arabs get by some Turks at the airports and streets makes us (cautious). Also the fact that some Turks Believe all Arabs are Dirty savage dogs is another reason to add to the bag of cautiousness. These people are a minority in Turkey but once they attack (verbally or physically), it will of course make the news and spread like wild fire.
Turkey was the place to be for gulf Arabs. I am sure Turkey made billions in tourism and real-estate. Then the gov. decided they did not need our money anymore (im guessing here) and gave an indirect green-card for the loonies to attack GCC Arabs. Similar to trump and the bad influence he has on people and how he brings out the bad apples out of hiding.