Well, the government of one autonomous mostly-state invaded sovereign Israel, killed or abducted every single person they encountered, with the stated goal of repeating it over, and over, and over again. This demonstrates on-going intent, which is a primary distinguishing feature of genocide as opposed to war or terrorism and further demonstrates that the motivating factor was that those targeted belonged to an racial, ethnic, religious, or national group, which is another primary distinguishing feature of genocide.
Even with that aside, do you disagree that when those types of atrocities occur, that the UN should stand with the victim, rather than the perpetrators?