Further to several previous posts I made regarding my Catholic primary, I would say it was wall to wall indoctrination and most parents were complicit with that. However, like most kids growing up in the '60s, my parents like fellow Catholic parents were a complete paradox. On the one hand we had a draconian version of our religion imposed on us, but had complete freedom to roam around when not in school and mix freely with children from other denominations, that really wasn't an issue, although the nuns at our school did warn us that we were never to venture in a church other than a Catholic one because alhough God wouldn't be there he would be fully aware of such a transgression. The disapproval of other religions by some of the non secular staff at our school, although quite nuanced was nevertheless something we did pick up on. In retrospect I regard it as quite pernicious to taint childrens' minds in such a way and think how much worse it must be to crank that up a few notches where children are taught that it's permissable to act in a violent way to "non believers" or followers of other religions.
When I was at school I felt Catholics seemed to have an historical axe to grind. I think they may well have moved on I gather from my step granddaughters who attended well known and some would regard elitist London state RC schools, that maybe these attitudes have been dispensed with and possibly the indoctrination is a much lighter version of what we had to put up with.
I sent my two children to a state CofE primary and they appeared to get the balance of how religion was taught right.
I can quite see the secularist point of view at their best faith schools often out perform others but at their worst they can be dire and they certainly shouldn't have carte blanche to shape childrens' minds in a negative way.