You have interpreted several Scriptures to defend a manmade doctrine based on tradition.
The NT never tells us that Jesus is God, it tells us He is a man who is the image of the invisible God and the exact representation of God's nature. This is far from telling us Jesus is God.
As to Isaiah 9:6, a name does not equate to being what the name describes. All the titles given in Isaiah 9:6 are for God, the Holy Spirit, and the Son so following your logic the Jesus only oneness group is right and the rest of us are wrong.