A delegation of Democratic members of Congress met with Palestinian Authority leader Mahmoud Abbas yesterday and received a blunt message about his vision for the state he hopes to lead. If he gets the independent Palestinian he says he wants, it will have no Jewish settlements. This demand for an ethnically cleansed Palestine would mean the forced removal of all Jews living in the territories. Since he is calling for that state to exist in all of the territory of the West Bank, Gaza and the part of Jerusalem that was illegally occupied by Jordan from 1949 to 1967, that