I made such claim where? Don't go there.
Your earthly church leaders have forgotten the early believers humble beginnings. Churches were in homes, in fields, wherever they could meet. The Church that Christ will return for aka The Bride of Christ has no name as it is the sum total of believers whom believe in Christ and accept salvation through Him. It is not Protestant nor Catholic in name.
The jealousy between Catholic and Protestants is much like the children fighting for the attention of a parent. Jesus addressed that issue with His Disciples as I posted earlier.
Mark ch 9 v 38John said to Him, "Teacher, we saw someone casting out demons in Your name, and we tried to prevent him because he was not following us." 39But Jesus said, "Do not hinder him, for there is no one who will perform a miracle in My name, and be able soon afterward to speak evil of Me.
Surely not a claim to incorrect doctrine? What are the other options here for your position, if not this one?