Let's start again. Here is the text.
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I have much pleasure in conveying to you, on behalf of His Majesty's Government, the following declaration of sympathy with Jewish Zionist aspirations which has been submitted to, and approved by, the Cabinet.
"His Majesty's Government view with favour the establishment in Palestine of a national home for the Jewish people, and will use their best endeavours to facilitate the achievement of this object, it being clearly understood that nothing shall be done which may prejudice the civil and religious rights of existing non-Jewish communities in Palestine, or the rights and political status enjoyed by Jews in any other country."
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Now, take a look -- this is a statement of "sympathy with Jewish Zionist aspirations." The government, it says, favors establishing a national home for the Jewish people. The only place where any statement regarding a "national home" is mentioned is in reference to Jews. With regard to non-Jews, it speaks only of "civil and religious rights" not nationalistic ones. You see the? I didn't create that distinction. The text clearly separates the groups and the rights recognized for each.
No mention of "Palestinians" as a group. No mention of any nationalistic right or guarantee or even awareness for any other group besides Jews. And you can't show otherwise.