Have you ever noticed how leftwingers want a solution that allows Israel to exist safely, but also treats Palestinians with dignity as human beings with rights, and believe that both sides are too blame for not achieving this. At times the bulk of the blame had been on Palestinians, at other times (including recent decades) it had been on Israel.
What leftwingers want is for Israel and Palestine to do what South Africa did in the early 1990s and come to a negotiated settlement which ensures the rights of all the people there are protected. A two-state solution seems the most likely way to achieve that since Israelis are so set on the idea of an ethnic and religious homeland being a rigth, they must then offer Palestinians the same right.

One the other hand rightwing thought consists of "Israel good, Muslims evil".
And hence peace becomes impossible because that section of Israel which is racist and hateful has the entire global rightwing on their side. Try a little sophistication.