Argentina and Brazil, like all enemies of Israel, are not interested in the peace process. Peace, including an independent Palestine that recognized Israel's right to exist and was willing to compromise on borders, might legitimize Israel's existence. Israel's enemies don't care about Palestine. They know that an independent Palestine can exist only WITH Israel and not against it. They want to destroy Israel, after which the world would forget about the Palestinians and divide up the territory among the neighboring states.
Syria foreign minister in Tehran for talks with Iran, Russia (Reuters)