Ethnically yes. But the 'Judaism' that the Lord preached isn't the Judaism of the time since. Jews that followed Jesus were Christians by Spirit, Jews by ethnicity. Judaism of Christ's time didn't believe He was the Messiah, Christians did. Judaism in general today doesn't teach Jesus Christ as the Messiah, it isn't the same. Acts 4:11-12
Do not think that I am come to destroy the law, or the prophets. I am not come to destroy, but to fulfill.
Matthew 5:17