Having read through this thread and seeing some rather vitriolic posts from Catholics toward Protestants, I wonder: Didn't a Catholic council a while back called Vatican II declare that non-RCC churches and members thereof were nonetheless to be considered Christian as long as certain things (which seem to me to apply to most Protestant branches) were the case? If so, if Catholics attack Protestants as being not of Christ/bound for hell/etc., aren't they in disagreement with their own church doctrine? (Or am I misunderstanding the whole situation there?)
Having read the same thread, it's my observation that the vitriol is not necessarily one-sided. That being said, the Second Vatican Council attempted to change the language of how Catholics refer to Protestants, insisting on the term "seperated bretheren," but it did not and can not change the fact that Protestantism is a heresy which is an offense to God. Catholics should always strive to be charitable towards those who embrace the errors of the Reformers, but should never be tolerant of the errors themselves.