Now, I would call myself a messianic Jew, someone born a Jew but believing in the claims of our Jewish Messiah, Yeshua, who was born into this world about 2000 years ago and yet who mysteriously still lives.
Just because I believe in this Yeshua, this Jesus, it doesn't mean I've become the enemy of the Jewish people. Despite rumours to the contrary I haven't sided with the enemy.
The true enemy of the Jewish people have been those infected with the virus of anti-Semitism. The fact that these people have seemed to be Christian or marched under a Christian banner, whether Crusaders, or Inquisitors, or Nazis, is an illusion and a lie.
Jesus never preached anti-Semitism, he urged only love to his fellow Jew, as did Saul of Tarsus, the apostle Paul in the New Testament, the man credited with first spreading the Christian faith.
I belong to a messianic fellowship, in East London. This is a 'church', in that it is comprised of believers in Jesus the Messiah (this is the true meaning of 'church', rather than the building where they meet). The main difference between this 'church', which meets on Fridays, and the traditional church that meets on a Sunday, is that the Jewishness of the faith is celebrated rather than ignored. Prayers are said in Hebrew, as well as English, the worship has a distinctive Jewish flavour and teachings tend to be centred around the need to restore the Jewish roots of Christianity. If you go to any messianic fellowship these days you'll find as many Gentiles as Jews, usually more. More and more are waking up to the need to bring back the Jewish stuff, to start to read the Bible with Jewish eyes.