Why does Israel treat Palestinians with such kindness?

...compared to how the Lebanese and Jordanians treat them? Remember September 1970 and how the Palestinians destroyed Lebanon? Conditions in the West Bank are much better than the refugee camps in those places. I am not Jewish and I wish for the two-state solution, but it's pretty clear that Muslims don't really care about Palestinians and just use this conflict to hate on Jews under the pretense of "anti-Zionism," which happens to be an integral part of Judaism.