Israel is a nation established by the UN. No amount of statements by Abbas or Netanyahu are needed to reinforce that. There is no way Abbas can attest to the Jewishness of that nation. Although it is now the homeland for many Jews, its Jewishness is defined by the actions of the people living within Israel, and them alone. Meaningful peace is more under the control of the overwhelming powerful Israel rather than the subservient Palestine, If Netanyahu and Israel truly want peace, it is within their means to have it happen. From all appearances, Israeli leadership is more content with a state of war and an excuse to seize more land while suppressing the Palestinian people.
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from the article: Netanyahu: No peace until Palestinians accept Israel as Jewish state