Genocide - “A crime committed with the intent to destroy a national, ethnic, racial or religious group, in whole or in part” [The Convention on the Prevention and Punishment of the Crime of Genocide, 1948, Article II]
What needs to happen for a genocide to take place:
The defense cabinet of Israel must deliberately express an intent to commit genocide. (e.g. Arab Leader Grand Mufti of Jerusalem Haj Amin Al Husseini encouraged and incited violence against Jews in 1920 , 1921, 1929 , 1936 1939)
Israel must take action with an intent to deny the right of the Palestinians to exist. (e.g 5 Arab states invaded Israel hours after it declared its independence in attempt to annihilate the Jews through war)