"When Levada expressed his surprise at his appointment, the Pope responded that he was in fact the right man for the task because he came from a world where evangelical groups were a challenge, where the message of Christ was being distorted, and that he had provided a compassionate but firm rebuttal to the many assaults that the church of San Francisco had faced during his years as head of the diocese."
"Catholic unity" is a lot like "Democrat bipartisanship." "I'm right, you're wrong and you have to give in to me!!!!!"
Funny, I thought that was the attitude of many in the "reformed" Churches as well. "Rome is wrong, we're right, you can only be saved with us!"
Well, the law of non contradiction says; according to Aristotle, "One cannot say of something that it is and that it is not in the same respect and at the same time."
So, either the Catholic Church is the one true Church established by Christ or it isn't. On points of opposing doctrine, one is right and one is wrong. Two statements that contradict each other cannot both be true at the same time. That's just the way it is.