The usual comment on the thread I see. I think it is pretty safe to say that this individual is familiar with Sacred Scripture.
While perhaps it is a stretch to say most Protestants believe the Pope is the antiChrist and the Church the Whore of babylon, there are some who do (a vocal small minority).
However, that comment along I do not think discount what he has to say. Have you ever read Scott Hahn? He uses scripture a great deal, perhaps not in the interpretation you would prefer, but scripture is the focus of his writings.
I've read little bits and pieces of his work...I've also read that he continues to use some of your church documents as authorative which were proven years ago to be some of the documented forgeries of your church history...
As I see it, many, if not most of the Reformed churches are 'throwbacks' of the Catholic church...They don't like everything you guys teach but they never really cut the umbilical cord connected to your church...
I believe that's where Scott Hahn came from...He always was a Catholic...I'm not from that bunch...
When you read his stuff you should always have your Bible open next to it because he misquotes and takes scripture out of context to support his personal theology