Fair enough. Have you? And if you have, please explain how you come to the conclusion that what JPII had to say about Islam and Muslims agrees with what pre-Vatican II popes and saints had to say.
Incorrect. I stated no such conclusion.
Based on an out-of-context quote from the Catechism, which was released long after Vatican II, a commenter accused the Catholic Church of somehow being responsible for explaining divergent views of killing in Islam. In response, I put the Catechism reference in context in a manner which negated his or her claim, using the Catechism and contemporaneous staements by JPII.
If you would like to suggest a new and different topic for discussion, i.e. comparing current catholic teaching on this issue with the teaching of the Church before Vatican II, that sounds like a great idea. But I'd like to see you start the research since you suggested the topic.