I can accept the universal (catholic) church, but not the Roman Catholic Church as the only expression of the church of Jesus Christ.Good, what are the specific, distinguishing marks that separate the two?
The "church" universal is headed by Christ Himself, through "overseers" locally. All true believers in Christ are members of His Body, and there is no one human head of the church. The church universal is expressed in many denominations, with many different expressions.
Additionally, there are many who claim to be part of church universal, including some in the Roman Catholic Church, who are not part of the church universal.