At one point, Arafat would have your broken your kneecaps (the mayor of Nablus) if you argued against a two-state solution.
But after the Oslo agreement stalled and unraveled, he swung against that and favoured a one-state Israel-Palestinian confederation.
Israel has had a choice for many decades: A two state solution where Israel maintains a Jewish majority, or a one state solution where Arabs will outnumber Jews because of the great difference in birth rate.
The latter solution can be negated if Israel becomes an apartheid state.
However, there is a chance that, in an integrated one-state solution, that the Jewish majority can be maintained: Because whereas the secular Jewish birth rate is negative, the Orthodox-Hassidic birth rate is astronomical. The problem is that Israel is turning into a religious fundamentalist state with the growing influence of religious parties, holding the secular ruling party hostage in their proportional representation electoral system. More and more Israelis are emigrating to France/Canada/US because they can't stand the religious nonsense, further accelerating that possibility.
In any case, Israel's character is changing as a result of the abandonment of the 2 state solution by the right wing parties.