I think there are many Christian Catholics, just as there are many Christian Protestants. Since I define "Christian" as one who believes Jesus is Messiah and trusts in Him for thier Salvation, that covers a lot of people in a lot of denominations.
OTOH, I do think a lot of Catholic stuff is unBiblical...and that's why I'm not one.
But my parents are Catholic, and I know without a doubt that they are believers, and I really respect them for it!
And on the subject of religions torturing and killing others...well, actually, Protestants have that in thier history as well. I have a Catholic ancestor, John "Staker" Wallace (yes, that's what they called him posthumously!
) who was burned at the stake by the Protestant leadership in his town in Scotland. I have an Anabaptist ancestor who was persecuted and driven out of Switzerland by Catholics. There was even an unfortunate episode where a sect of Anabaptists (forbears of the Mennonites and Amish) led by a wacko overtook Munich and did the rape and plunder thing. Ugh. It's called sin, and nobody's immune from it, I don't care what church they're in.