You have to be careful about identifying someone as a Catholic (or a Jew). Recently a FReeper posted some really nasty statements about the Pope. They identified themselves as a Catholic. When I posted my doubts "you're about as Catholic as Ted Kennedy", I received a reply which included this:
"Having been brain washed by priests and nuns in french Catholic schools.
Decided not to follow my Catholic upbringing having lost respect for the church many years ago."
There are many like this FReeper who identify themselves as Catholic but, in reality, are nothing of the sort. Why they do this I don't know. You will find that actual practicing, church going Catholics are pretty conservative. I suspect the same is true of actual practicing, synagogue going Jews.
There was another Freeper a few years ago during the Catholic priest sex scandals that claimed to have been molested as a 12 year-old by a priest, and he hated the Catholic church for that reason. It turned out he was a big-time flake who lied about that and several other things. It's easy to be a fraud on the internet until you're called to back your claims up.