Ethnic cleansing is the purging of an area of of a group with a specific identity. That is exactly what has been happening in East Jerusalem, as well as other areas of Israel and Palestine. Israel can call it whatever it wants. If Israel lies frequently and consistently, eventually people will believe the lie.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Israeli Arabs accuse Israel of 'ethnic cleansing' in Jerusalem