Would the UN take Hamas on for kiling so many Fatah Gaza citizens? Russia for its crimes in Chechnia? China's for human right violations? so, Why would the UN take Israel on for defending itself? The UN is weakening itself by foolish resolutions that don't solve any problems.
Israeli PM to Palestinian President Abbas: We must fight terror together (Haaretz)
from the article: PA 'won't oppose war crimes trials for Hamas militants'