That's not what the UN is for... it's not a military force... it's a round table for nations to work their differences out via words and not nuking each other.
We need something more than the UN that has real power to stop Israel's terror and genocide. The UN can fuck off and prevent it's theoretical events elsewhere.
The US doesn't even recognize the authority of the internation war crime tribunal, you really think they (or any other superpower) would accept binding arbitration in matters of international relations?