The Majority needed for Secession and Territorial Downsizing Decisions: The West Bank, East Jerusalem and Quebec

I am interested in the legal reflections of the Israeli political crisis. As the crisis itself, these reflections are multidimensional.
I will focus here on an effort at diluting the voting power of the Arab-Palestinian citizens of Israel in territorial downsizing decisions. The mechanism is a demand for a “special majority” for such decisions, which is a proxy for a “Jewish majority”.
The supporters of such mechanism, which was raised in the case of East Jerusalem, the West Bank and the Golan Heights, advance various arguments including a comparative one, which resorts to the “clear majority” demand in Canada re a secession vote in a future referendum in Québec.
I would look closely at the Israeli and Canadian cases and show their critical differences.