We know things are getting rough for the Arab street when they forget about throwing rocks on Jews and instead focus on their own Arab brethren.
This is exactly what happened in the Israeli Arab city of Umm Al Fahm. Local Arabs threw rocks at Arabs riding an Israeli bus.
Why did they do this? There is a large percentage of the Israeli Arab sector that still has not come to terms that they are in fact Israelis. This is despite the fact that they have the best healthcare around and live quite comfortably. All of this success ruins the victimhood narrative they have developed and so what better way to keep being victims than to destroy the State that is helping you.
Unfortunately this also means they have attacked their fellow Arabs. If someone wants to destroy enough – all are expendable when the caliphate is the end goal.