Well there will always be those any and everybody that disagrees with them. Mostly I believe it RCC doctrine, dogma and the Vatican that most people (including myself) have a problem with.
As you know, I was Catholic. As well as my mom, aunts, uncles and the entire Dalmatian, Italian and Latino side of the family. Catholics are no better or worse than any other euro or latino culture. Many are sincere and some do believe that Jesus died for them. There are Charismatic Catholics that are born again.