Pope's are Catholic. Christian don't have pope.
Years and years of Christianity and Catholics hating or just tolerating each other. I know first hand. My Dad Catholic, follows the Vatican and the pope word for word... tries to at least. My Mum raised Baptist and now, I have no idea. It's all the same to me at the end of day. My family is a rainbow of all Christian/Catholic depending on the side of family.
I said this to my Dad before and drilled me how Catholics are not Christian and my Mum will say the same.
You're probably right, my parents are crazy in my eyes. How they got married at all is a "miracle" lol