Clearly the Roman religion calling itself the *Catholic church*, doesn't want its power grabs interfered with.
I don't think an authentic Christian believer can really argue that freedom of religion is an unalloyed good. Maybe it's the best of the realistically available alternatives, but that's not the same thing as an unalloyed good.
Pace Pope Francis, the diversity of religious opinions is at best permitted by God; it certainly isn't desired or ordained by Him.