The "Official" Roman Catholic Church is not exactly what might be considered "tolerant". What is commanded by The Pope, and subsequent Administration, is to be taken as "gospel". There are more "Thou Shalt Not"s, with rather grave consequences if you do! The slightest transgressions, though considered "forgivable", through confession, atonement, etc., are viewed with a gravity that usually outweighs common sense.
And this is the "true" nature of a "Loving God", a "Caring Father"??
I'm not even going to start to getting into the hypocracy of a devoted life of Poverty (have you seen the Vatican?), or the purity of celebacy (What alter boys and/or young girls?).
The more transparent the actual practices of "The Church" becomes, as opposed to what is expected of it's followers, raises more doubt as to it's claim of being the accurate representation of "God on Earth". And "The Faithful" end up questioning their very Faith!

I think it's the whole.
'If you have sinful thought you will burn in hell forever,and this is the same punishment that amass murder gets too."
 ](*,)](/images/smilies/bang.gif)
This type of BS is most likely the cause for the catholic to athist thing.

And yes,I'm Catholic.

So,I just do the basics Church once year. Confession Once a Year and Communnion once a year. I believe in God. The Pope is full of S*#@.As,are most of the priest,nuns,brothers,and lay administers.
Ejbonk