The elephant in the room vis-a-vis a continuing State for all Jews everywhere?

How can Israel allow non-Jews to live there and become citizens? Given that, it's inevitable that non-Jewish Israelis will eventually outnumber Jewish Israelis. Once that happens, the Jewish minority will have to resort to apartheid-like methods to control the majority non-Jewish citizenry. The Israel of tomorrow will have to choose between preserving it's original meaning, a state for Jews, using non-democratic methods or accept it's transformation into simply one democratic state existing in the Middle East.