A march in an Arab part of a city within Israel has resulted in violence. This could be expected. What I find interesting is the following: "But marchers disseminated a particularly hot-button message in Umm al-Fahm that has been setting people off: They demanded that Israeli Arabs should be loyal to the Jewish state, a stance considered insulting by many Israeli Arabs."
Loyalty to Islam is far and above ANY government, let alone an infidel, representative government as Israel. This is a large part of the reason why Arabs find the idea INSULTING. (Let us chalk up another insult) Please note that the reference about being insulted is speaking about ISRAELI Arabs. I am certain that the entire idea is even more insulting to the rest of the Arab world. Enough to justify killing and injuring others.