In the entire history of human civilization, there has never, ever been an independent Arab state situated between the Jordan River and the Mediterranean Sea.
At the same time, there has been a continuous Jewish presence in the historical Land of Israel — including the biblical heartland of Judea and Samaria, which "international community" ignoramuses nonsensically call the "West Bank" — for thousands of years.
The modern 20th/21st-century history of the Israeli-Palestinian conflict is not difficult to grasp. The Balfour Declaration of 1917, San Remo Resolution of 1920, Article 22 of the League of Nations Covenant, and the Peel Commission all laid the pre-World War II positive law foundation for what we all already knew from Genesis: The Jews are entitled to our land. In November 1947, the U.N. Partition Plan for Palestine proposed a pro-Arab partition that would have given the Jews a tiny, unworkable state. The Jews accepted; the Arabs rejected and instead launched a genocidal war to kill the Jews. The Arabs lost. The Arabs tried in 1967 and lost again. They tried in 1973 and lost yet again. The unrepentant terrorist Yasser Arafat and his Holocaust-denying kleptocratic Palestinian Authority successor, the brutish Mahmoud Abbas, have similarly never been nearly as interested in negotiating peace as they have been in killing Jews and inciting bloody jihad. In a sign of good will, even after Arafat's Second Intifada murdered over 1,000 Jews and grievously maimed many thousand more, Israel in 2005 unilaterally withdrew from the Gaza Strip — forcibly uprooting its own citizens en route. Jihadist outfit Hamas took over and turned the Strip into an Iran-subsidized terrorist enclave.
Again, the history is not difficult to understand. As Dennis Prager has said, if the Israelis were to lay down their guns, Israel would be destroyed tomorrow. But if the Palestinian-Arabs were to lay down their guns, there would be peace tomorrow.
All the Palestinian-Arabs have to do is accept Israel as a Jewish state with secure and recognized borders, pursuant to U.N. Security Resolution 242, and there will be immediate peace. But they have not done so because the sprawling Arab world, with devastating rapacity, has never abided a Jewish state that is smaller than the state of New Jersey.
The Trump administration soberly recognizes that under properly construed international law, Israel has (by far) the best legal claim to all of Judea and Samaria. Jordan illegally occupied the territory after the failed 1948 Arab war of aggression, after all, and Israel won it back only in the defensive war of 1967. Israel has always been willing to make political concessions of the land for peace, as no less conservative a prime minister as Benjamin Netanyahu's acceptance of the Trump peace plan demonstrates.
The Trump plan deals with the reality on the ground — the reality of inveterate Palestinian-Arab intransigence, rejectionism, and glorification of jihad. The U.S. cannot be "neutral" as between stalwart moral/strategic ally Israel and a thuggish Palestinian Authority. Good for Trump for recognizing that.