The way I see it, the political project which forms the foundation of the state of Israel is that it must be a jewish state. No zionist in the United States or Europe even questions that, they simply ask wether or not a jewish state has the right to exist - with no care given to the actual population of the region. Given the demographics of the country, Israel's objectives can only be achieved, and maintained, via a mixture of apartheid and ethnic cleansing. To say that Palestine must be freed from the River to the Sea is a recognition of how the Two State ideal is only a short term solution to criticism of israeli apartheid, allowing it more time to accomplish its goals. There is just no permutation of Israel which will allow Palestine to exist in any way, shape or form.

For as long as Israel exists, Gaza and the remnants of the West Bank will remain an archipelago of concentration camps where the state of Israel controls water, electricity, property rights, freedom of movement and information, and so on, just so that it can all be systematically denied to the palestinians. Wether in the future there is such a thing as 'Israel-Palestine', there is no future in which either Israel accomplishes it's goals of ethnic cleansing, or Israel such as it exists is abolished.