Because it's an example of resistance to the way western economics works since 1492, killing brown and black people and taking their stuff. If Gaza wins with everything arrayed against it, that sets an example for everyone else. It gives them hope. It's a weather wane that they can't have go the other way. In fact, I think that's why they show us the atrocities and do a shitty job covering them up. It's to show us what happens if we get "uppity"