Any person who does not glorify Christ Jesus as Mighty God, Everlasting Father, Prince of Peace, King of Kings and Lord of Lords is not truly Christian.
A synagogue is the Jewish equivalent of a Christian church. It is a place of worship, teaching and fellowship. What would a synagogue of Satan look like? ➛ It would not lift up Jesus ➛ It would not lift of the Word Of The Lord. ➛ It would not lift up the Holy Spirit. ➛ It would speak truth tainted with lies. ➛ It would have form of godliness but deny the power.
The rejection of Jesus made the Jews, to whom Christ came with the Gospel, the Synagogue Of Satan. In rejecting Jesus (who is God) they de facto began to worship Satan who is the enemy of Christ.
Zionism which promotes Jews who reject Christ is therefore Satanic.
Who is the 'you' that is loved? Those who worship the Lord Jesus Christ.