(See here; and here)
There are also 360,000 Jews in Judea and Samaria. But add on another 300,000 living in Jerusalem's post-67 neighborhoods. Total sum equals 650,000 (to be conservative).
In other words, without Jerusalem, the Jews represent 13.48% of the population in those areas.
With Jerusalem, the figure is 16.9%.
The proportion of Arabs in Israel is 20%.
In other words, we have basically a mirror-image.
If Israel can maintain itself with a minority of 20%, "Palestine" can't be a state with 17% Jews?
I have received these figures from Yoram Ettinger:
The number of Arabs in Judea & Samaria, as of December 31, 2012, is 1.67MN.
The number of Arabs in Jerusalem (within the municipal lines) is about 300,000.
So that would be 2 million.
Therefore the correct proportion of Jews in Judea and Samaria, 650,000, is over 30%.