The source is well-known history. Open any book on the topic: British Mandate wasn’t just given to the Jews. The State of Israel was created for the Jews, and the Kingdom of Transjordan (now Jordan) was created for the Arabs. When they say “river to the sea” what river did you think they meant?

Jordan is the nation that Palestinians already have. They don’t want another one; they want the Jews to not have one at all.

You needed to invite a lot more people and at least a few people who didn’t like wrestling.