If the Arab world wants to show solidarity with the Palestinians, the easiest way to accomplish this is by attacking the west's oil supply before winter. Oil prices have already created massive economic damage to the economies of Europe and North America. Those oil prices would bring the west to it's knees, and force the west to reevaluate its relationship with Israel if they knew supporting Israel meant oil prices in their country go up 20%, or 30% due to Middle Eastern countries coming together in solidarity with the Palestinians. Even the United States will stop supporting Israel if enough homes go without heating in the winter due to high gas prices. Especially since America's oil production is strained with supplying Europe as a result of shortages of Russian oil going to Europe. It really is the most peaceful solution to the Palestinian-Israeli Conflict that ends in decolonization of Palestine.