After occupying Gaza and the West Bank in 1967, Israel expanded West Jerusalem's boundaries by 70,000 dunams. Doing so meant incorporating 28 Palestinian villages.
Thereafter, East Jerusalem was effectively isolated from the rest of the West Bank by expropriating more land, destroying private property, curbing Palestinian demographic and geographic expansion, and reducing the city's non-Jewish population while simultaneously building settlements.
Palestinians allowed to stay got blue ID cards. West Bank residents got green ones. In 1980, Israel formally annexed East Jerusalem as its "complete and united" capital in violation of international law.
Israel won't tolerate East Jerusalem as Palestinians' future capital. Palestinians there are considered "permanent (Israeli) residents," permitted to live and work in Israel without special permits.
However, their status may be revoked under Article 11a of the 1952 Entry into Israel Law. It permits Israel's Interior Minister to revoke residency of anyone (and their family members), accused of allegedly participating in terrorist activity or belonging to a designated terrorist organization, whether or not true.
Hamas members or sympathizers are vulnerable for belonging to or supporting a political party Israel rejects. As a result, they face arrest and/or expulsion in violation of international law. It prohibits forced deportations of protected persons regardless of why.
In fact, an amendment to the 1952 Entry into Israel Law, titled Revocation of Nationality for Terrorists and Revocation of Permanent Status for Terrorists and their Families, violated Geneva law.
Revoking permanent residency also violates Article 12 of the International Covenant on Civil and Political Rights (ICCPR), stating: