Why no one wants them

At least one of the two suicide bombers who targeted an Iranian cultural center in the Hezbullah section of Beirut on Wednesday is... a  'Palestinian' from the Ein Hilweh 'refugee camp.'

One of the alleged suicide bombers has been identified as, Nidal
al-Mghayer, a resident of Sidon’s Baysariyyeh, who has family members
in Ain al-Hilweh, according to a report by the NOW Lebanon website,