Note on this one:
Yes, I really was surprised.
Catholics believe that our faith is deeply biblical. It surprises us when "Bible" Christians disagree.
We know the usual points of dispute with Evangelical Bible Christians -- Mary, the Eucharist, other sacraments, priesthood, hierarchy, taking books out of the Bible, etc. I have heard Evangelicals explain these things and offer alternative teachings.
I have never heard an Evangelical say, "The Church is not Christ's Kingdom. Jesus was just making a metaphor."