Auto correct pushed a "not" on there, for some reason. Allow me to explain my point.
What will the west lose if the idea of "Palestine" cease to exist and a "Palestinian" state is never created? Absolutely nothing. Such a state will hold anti western ideologies and advance anti western values.
What will happen if Israel will cease to exist? The west will lose a lot. From Israel's tech industry to its scientific advances. Not to mention an ally in the middle east.
Since the "Palestinians" made sure that the two states can't coexist, it's obvious whom the west should support.