I'd like to point out that your incorrect in your statements. Son of God shouldn't be interpreted son of Man because they both have very distinct and separate meanings. Son of God would attribute kingly status of David to Jesus, which is of a human nature. However, the Son of man is a reference to Daniel 7 Which denotes the Son of Man sitting at the right hand of God, which is of a divine nature.
Also Jesus had no care for the politics of Rome, made evident by his his response to the question of whether or not the Jews should pay taxes to Rome.
He was also far from left wing, if anything he'd be a middle road conservative. The political groups he spoke against in the gospels are where conservative, liberal and militant, they being the Pharisees, Sadducees and The Zealots respectively.
You don't have to take my word for it, reading through any of the Gospels should make this clear.