Perhaps you are correct. But how will I know if you don't fully explain why you believe this? I mean, it's easy to throw mud and accuse a group of misunderstanding scripture. It's another thing to thoughtfully, respectfully and patiently prove it.
I've had long conversations with Catholics who took the time to speak the truth in love. They reasoned with me, rather than trying to prove me wrong, even though my only goal was to prove them wrong. Through their reasoning, I found myself proving myself wrong!
But just as important as their reasons why they believed was their attitude tword me. It showed the sincerity of their beliefs. While I cared only about winning arguments, they cared about winning me over. They looked at me as a sheep lost and a soul to be saved, rather than a foe found and an antagonist to be vanquished. They did not give up in their determination to love me.
Now I'm not Catholic, and I'm not saying all Catholics treated me this way. However for those who did, I do not doubt their sincerity. It's possible they were sincere, yet sincerely wrong, but that sincerity spoke louder than words to me and causes me to doubt that they were in error. Perhaps it was evidence God was with them?