While I haven't always understood why some of my brothers and sisters in Christ believe and/or worship as they do, I've never felt it necessary to publicly condemn or mock them for believing and/or worshiping as they do.
I think a lot of Protestants don't realize that about 98% of the practicing Catholics (I'm talking regular churchgoers, not just Easter and Christmas people) basically ignore almost everything coming out of Rome.
Especially anything about prohibiting all forms of birth control.