That might have something to do with the Arab world, as well as their own Palestinian brothers in the PA, deliberately keeping them in refugee camps, not giving them citizenship, etc., etc.
The only legitimate goal for a Palestinian refugee in life is to destroy Israel through the "right of return", the thinking goes. Anything else is not allowed.
When you're dealing with turkey farming expect incomprehensible gobbling.
When you are dealing the the uncomprehending, expect incomprehension. It's one of those rules of life.