The only time I've ever been in a Catholic church was to attend a wedding. As I normally do when entering an unfamiliar building, I stop and take a look around, just inside the door. My first thoughts were NOT of idolatry, but that there was an awful lot of guilt attending that church. The money(s) that had been spent on the decor inside there was A LOT.
Can't say if ALL Catholic churches are that way, but if they are, seems there's a huge amount of guilt sitting in the pews on Sunday morning.
Just my opine.....Roger