When we were in Israel we met an Israeli who is Jewish but also Arabic - his family is from Iraq, he speaks fluent Arabic and it's the language of his ancestors. Like Israelis of all religions he also speaks Hebrew fluently. But he's not one of the "Israeli Arabs" who were being protested in Umm al-Fahm this week. He's one of the 3.5 million Sephardim and Mizrahim who are linguistically and often culturally Arabic.
The real divide here is not language or culture or ethnicity it's religion. Why aren't we calling a spade a spade? Why don't the news stories talk about Israeli Christians and Israeli Muslims?