infundibulum.
Arab citizens of Israel are non-Jewish Israeli citizens whose cultural and linguistic heritage or ethnic identity is Arab. The traditional vernacular of Arab citizens, irrespective of religion, is the Arabic language, or more precisely, the Palestinian dialect of Arabic. Most Arab citizens of Israel are functionally bilingual, their second language being Modern Hebrew. By religious affiliation, most are Muslim, particularly of the Sunni branch of Islam. There is a significant Arab Christian minority from various denominations as well as Druze, among other religious communities. Israeli Mizrahi Jews are not considered to form part of this population.
According to Israel's Central Bureau of Statistics, the Arab population in 2010 was estimated at 1,573,000, representing 20.4% of the country's population.
The majority of these identify themselves as Arab or Palestinian by nationality and Israeli by citizenship. Many have family ties to Palestinians in the West Bank and Gaza Strip, as well as to Palestinian refugees in Jordan, Syria, and Lebanon. Negev Bedouins tend to identify more as Israelis than other Arab citizens of Israel.
Most of the Arabs living in East Jerusalem and the Golan Heights, occupied by Israel since the Six-Day War of 1967, were offered Israeli citizenship, but refused, not wanting to recognize Israeli sovereignty. They became permanent residents. They are entitled to municipal services and have municipal voting rights.
So, 20% of the people that Hamas are attacking in Israel are from their own ethnic group. This is apart from those they kill in Gaza if they consider them not loyal to the cause.
How else do you describe groups who are so fixated with hate that they murder their own people that do not support them in their madness?