You made the comment Dear Sister, the protestant belief that their scripture interpretations are always guided by the Holy Spirit is the cause of these groups you mention.
My question is a simple “yes” or “no” question. “Does the Holy Spirit lead the individual Roman Catholic to believe that what the church teaches is truth?”
I did not ask if the believer is “indwelt” by the Holy Spirit.
An example would be a Catholic voting for a pro choice politician's thus ignoring what Church’s teaching of pro life