Israelis could trust that they would be relocated en masse to America or Europe. But Israel's stock is very likely to plummet soon, at least in America, and they may find themselves in the position of common refugees. (the danger being an unconventional attack on Israel that renders it difficult to inhabit). To paraphrase the article, until Palestinians have one good passport, Israelis will need at least two.
Egypt to hold parliamentary election in 2 phases starting Oct 18-19 (Reuters)
from the article: Fear is driving Israelis to obtain foreign passports