You are correct. last year a Hamas terror tunnel was found beneath a school built by UNRWA. The IDF have found drones, rockets, machine guns, mortars, explosives and grenades in facilities where UNRWA were occupying. They also found hospitals that Hamas used as command and control centers and places to store weapons and hide their operatives. Hamas uses any facilities for their own purposes, contrary to the rules of war, if they think it will give them an advantage. Gaza/Hamas started this war, and they can just as easily stop it, but they won’t. So let the chips fall where they may.