Interestingly, the Palestinian envoy to the UN Riyad Mansour argued on the same side, by saying that the Palestinians were victims of the UN - because the UN decided in 1947 that the Jews of Mandate Palestine shouldn't be slaughtered by their Arab neighbors. He says that the UN failed to create a Palestinian state without noting that his own people wanted to be part of Jordan in 1949.
Typically, Mansour argues that the UN is responsible to solve the Palestinian issue, and Palestinian Arabs themselves have no agency or responsibility of their own. His argument is filled with lies, like claiming that there are more than 5 million Palestinian refugees living in camps. He quotes Resolution 242, falsely claiming that Israel didn't give up land for peace, without saying that Palestinians were bitterly against it because it recognized Israel has a right to exist.