I never responded to your links about the doctrine of infallibility because it is common knowledge that the Catholic Church has been claiming this for the last century. This is not earth shaking news.
It doesn't matter what the Catholics claim about their own religion, it is their business. If they think they are infallible or if they want to call Peter the Pope or Santa Claus has no effect on the rest of the world's religions. Their interpretation of the scriptures, 10 commandments or whatever is for their own people and not being forced on anyone else.
Before you make accusations about Catholics or any other religion you should get the facts straight. (a lot of popes were married) Quoting random passages from nonauthoritive sources (Confessio Romano ) looks impressive until someone tries to research it and finds it to be hogwash that the Catholic church doesn't even know about.
And your big revelation that the Catholics "changed" the day of worship to Sunday is a good example of how people who try to interpret the NT and the history of Christianity without any education or assistance from educated sources don't understand what they are reading. (again I recommend you get out a history book)
Instead of wasting your time looking up highly questionable sources to assist you in persecuting the Catholic religion (a real Christlike endeavor) maybe you should use your energy to study some of the reference books I posted earlier. And if you pray for God to help you overcome your bias and prejudice perhaps you will start to have a better understanding of the history and purpose of Christianity.