This is not the complicated, intractable conflict it is made out to be. 

It is a deliberately-perpetuated military, political, and economic campaign to deny the Palestinians their right to self-determination and steal their land and resources, period, deliberately perpetuated in brazen defiance of the UN and systemic violation of the very laws intended to prevent such an injustice. 

It does not end because the Israeli government and Zionism fundamentally reject Palestinian rights and statehood. And the US protects them from the law.

It is the most blatant and longest-running injustice of our times, and anyone serious about human rights has a duty to speak out and stand against it. 

All it would really take to end it is the will. 

Here's Waters in his own words, since the apologists for Israel's far-right have been spreading lies about the man, reinforcing the emptiness of their position:
https://www.democracynow.org/appearances/roger_waters