Catholic Church demanded Jerusalem not be part of Israel in 1947?

Yaacov Lozowick quotes a passage from James Carroll's Jerusalem, Jerusalem: How the Ancient City Ignited Our Modern World, which may give some clue as to why the 1947 partition plan for 'Palestine' made Jerusalem a separate entity. Arabs, both Christian and Muslim, wanted control of the sacred centers, but they were not alone in being unable to abide the thought of Jewish control. Yes, the city