Armenians? That's bizarre.

The only Lebanese who don't identify as Arabs are the Maronites, despite their speaking Arabic, eating the same food as everyone else in Lebanon, and having few other cultural signifiers that differ. That's a legacy of the times when they were given a privileged position over other Lebanese by the French. I find it highly improbable that there are many of those who are Israeli citizens.

Yeah, that's mostly what the population was before the formation of the modern state. Now there are a few other key groups. One massive one is the ~40% of the Israeli population that are Jewish Arabs (who Israel classifies as non-Arab, despite being clearly an Arabic people [many speak Arabic as native language, and most are from MENA]). Another group are the sizeable group of Arab Muslims that identify as Israeli rather than Palestinian. Then of course there are the Christian/Druze/Bedouin groups that identify with the varying states to varying degrees. The thing that makes it tough as that both states (whether legitimate or not, I think its fair to say that both Israel and Palestine are de facto states) refuse to release demographics for people who would identify as a certain ethnicity and a certain nationality (Israel treats all Jews as a single ethnic block, Palestine doesn't count [most] Jews as citizens, both groups are sizeable). Part of the confusion does come from the fact that the Palestinian government (in the West Bank, not Hamas, they're stricter) claims that any non-Jew living in Israel is actually a Palestinian; but that simply is not the case (any more than every Han person in Taiwan being part of the PRC).

In the recent election, Ra'am got a lot of votes from Arabic Jews who would certainly disagree with the idea of being Palestinian. The Joint List has a more Palestinian core voter base, but still attracts support from non-Palestinian groups. Netanyahu would love if everyone would spread the idea that both groups are Palestinians and thus don't have "skin in the game" when it comes to Israeli politics. Thus his constant rhetoric these days that they are.