If the Jews don't believe Jesus is .....?

Hello, If the Jews believe the messiah is still coming, they believe Jesus wasn't, then how come they fit in perfect with the Christians bible prophecy? They are a piece of the puzzle as far as bible prophecy. I am just trying to learn. I am trying to learn. I'm not trying to upset anyone. Just want to learn. Thank you. Then why does no other race seem to fit in bible prophecy? When I watch or learn about bible prophecy it's all about Christ and the Jews. Not Christ and Japanese or Mexicans. Thank you for your answers.