Who are the Jews and How Do Christan people see them?

I am a Christian. I believe in the Father, Son and Holy Ghost. I don't know about the Jews. I want to know about them. I want to know why don't they celebrate Christmas. I know someone who married a Jew into our family and I want to learn more about the Jews. I know that they are the chosen people. God favors the Jews. I know Satan hates the Jews. That is why the world is trying to destroy them. But I want to know as a Christian other than love them, how do they see Jesus? Who do they say Jesus is?