I agree. I love the Jewish people and know that the God of Israel will open their eyes soon!
The existence and presentation of God as a Father, a Son, and a Holy Spirit is a difficult concept for humans, but it stands behind a theology of divine love. It would not have been possible for God to reveal salvation that is God centered, not man centered, without revealing this. To call it a Trinity (a term never used in the bible) is to say too little about it, not too much.