Where is the root of Palestinian-Israeli hatred?

Say 1000! Ten thousand! It is an irreconcilable religious hatred between the two nations! They regard each other as heretics! They originated in the same place! They all regard Jerusalem as a temple! For thousands of years, they have been dreaming of this land! In fact, there is nothing wrong! Maybe God is wrong! If you have ever seen a torrent of pilgrims in Jerusalem! Look at their thin and sincere faces! You will have a deep feeling!