I have seen the article by S Daniel Abraham about Palestinian population exceeding the Jewish numbers which will compel the Israeli State into a difficult internal position. My view is that, even if Palestinian fall short of majority but constitute a significant minority (even 15-20% of the overall population) it will be difficult to discriminate against such minorities. In an enlightened state, a minority of ONE will be enjoying equal rights with the rest of the majority. THAT, in my view, is the real problem: treating people with equality regardless of the numbers.
10 arrested at Israeli Arab protest in Ramle (Haaretz)
from the article: How Israel will be destroyed without one shot being fired