The Romans killed Jesus. The Pope himself has said that Jews are not to blame in this matter. See the attached Related Link.
The majority of the population was Jewish.
Jesus may have been crucified, but that event doesn't have significance in Judaism.
People who practice the Jewish faith do not celebrate Christmas.
The Disciples of Christ are Christian, from the Protestant branch of Christianity. Jewish people generally do not believe that "Christ" has come yet, and those people who do believe he came are called Christians (followers of Jesus Christ). So, the Disciples of Christ would be gentiles, since they are not Jews. It is worth noting that "Disciples of Christ" is the name of a particular church, not a general term for those who follow Christ.
The Jewish people hated Adolf Hitler for killing all JEWISH
The Holocaust
No, Jewish people do not believe in Christ, so they don't celebrate Christmas. They celebrate Hanukkah, and their parents/family bring them gifts.
Hitler's attempted genocide of the Jewish people was the Holocaust.
It is called holocaust.
Jewish people believe that Jesus Christ wasn't the real Messiah and they are still waiting for the Messiah. They believe that Jesus was a fake Messiah. They could believe that Jesus didn't raise up or won't be raised up because he "sinned" a lot by faking but they do believe that only God knows who will go to heaven and who will go to Hell.
* Christ was Jewish, and had a Jewish upbringing.. * He believed in the Jewish teachings and even was given a Jewish name (Yeshua Mashiach). He was a true Jew and practiced traditional Judaism. Judaism was created by G-d, and Christianity was created by the Jews. The Jewish people are G-d's people. The Christians (Gentiles) were never G-d's people. The Jewish and the Christans worship the same G-d and there isn't much difference. Christ was a Jew and is a Jew.
While Christians around the world are waiting for Christ's return, the Jewish people are still waiting for His initial arrival. We are told in the New Testament that only through Jesus Christ can we come to the Father. For those that do not believe that Jesus was the only son of God, may end up in hell.