I see what you’re saying, and perhaps you’re right. I am more hopeful, though. Plenty of Israelis support Palestine and in the early days the Palestinians welcomed the Jews. It’s not fair to simply dismiss vast groups of people as irrational or terrorists. At one point in time these people got along, and even though a lot has happened since then I don’t think it’s impossible to get back there.
I think Western support does play a large role, it’s the reason why the Israeli military is what it is and probably why Israel feels free to indiscriminately attack Palestine. If our support was more conditional and not so one sided it would encourage cooperation and more peaceful resolutions.
You don’t own the thing you bought!