>We have examples where similar stances have apparently been successfully addressed. For instance, most of the Arab world used to have that posture vis-a-vis Isreal, and now they (mostly) say they don't. Including the non-nation of Palestine.
But what they say and how they behave aren't necessarily the same. Textbooks used in Arab countries (and, AIUI, in some Arabic schools in the US) are still loaded with anti-semitism and anti-Israel sentiment.