In any case, UNESCO's move is perfectly consistent with what Israel and the United States, and Canada and just about every other government in the world, have claimed all along is the ultimate goal—a two-state solution. Fully accepting the Palestinians into the United Nations will be an inevitable result of that goal, so why not start on it now? With the discredited peace negotiations going nowhere, why not at least do what we can? It is simply churlish to deny the Palestinians any progress at all.
Although we are no longer relevant in the Middle East, I should mention that our government joined Israel and the U.S. in voting against the Palestinians. Not, as they say, one of our finer moments.