The first time I got exposed to the "Catholics aren't Christians!" thing, I was at my own church (I'm AMEZ by birth, but went to Catholic school for a time), and I had to patiently explain to everyone that no, Catholics don't worship Mary, we didn't have to learn Latin or NOT UNDERSTAND ANYTHING (the music teacher tried and failed to teach us "Hail Mary" in Latin), and no, the priests who taught in my religion class weren't trying to grope me (one of them was youngish--maybe late 30s/early 40s, and would DJ at our school dances. Father Pat was so cool).

And really, where do people think the line "...the holy Catholic church" comes from in the Apostles' Creed?