[D-fendr]

Yes, it takes only a simple study of Christianity to reveal that teaching Mary is not a perpetual virgin is the radical fringe movement.

[RobRoy]

Simple study can cause all sorts of error. I know many homosexual Christians that have shown through a “simple study” that the Bible does NOT condemn homosexuality as a sin.

That said, the message of Christianity is both VERY simple and extremely far reaching. People add way too much irrelevant fluff - like the perpetual virginity of Mary.

[TheThirdRuffian]

"teaching Mary is not a perpetual virgin is the radical fringe movement."

Roughly half of Christiandom (if you accept that all Roman Catholic members and Orthodox churchgoers accept the Marian doctrines) is a fringe? And repeating that the rejection of the Marian doctrines is "new belief" does not make it so. Rejectors of the Marian doctrines have been present since before the Roman Church was organized into the Roman Church, Tertullian being the most notable example.