If they took any mention of Jesus out of their religion, removed His name from their service and conversation, it's hardly be noticed.
Yeah, they do mention Him when they brag on participating in His being killed continually in heaven which they say their mass is all about.
Jesus' death on the cross was a brutal slaughter, and yet they rave on about the beauty of Catholicism which centers in their *sacrifice of the mass*. They've even made it neat and tidy and bloodless.
Yeah, my sin is what put Jesus on the cross, not an altar, but it's nothing to glorify.
I'd be pretty hesitant myself to glorify Jesus' death and be so excited about participating in it.
Here are some resources where people can learn the basics of Catholic teaching.
I highly recommend Catholic Answers on-line radio broadcasts.
Another good resource, of course, is the Catechism of the Catholic Church.
Maybe you could recommend some resources for Protestant teaching, so people could compare.