Israel bombarded southern Gaza on Friday after it publicly sparred with its main ally the United States over the possibility of a Palestinian state, the creation of which Washington sees as the only pathway to a lasting peace. Witnesses reported gunfire and air strikes early on Friday in Khan Younis, the main city in the south of the Gaza Strip, where Israel now claims many members and leaders of the Palestinian movement Hamas are located. The United Nations says the war has displaced roughly 85 percent of Gaza’s 2.4 million people. Many are crowded into shelters where they struggle to get foo…