OK, but how do you explain Papal infallability? Sainthood? The elevation of Mary to quasi-divine status?
Uh, you might want to look here.
http://ic.net/~erasmus/RAZINDEX.HTM
Scroll down until you see a bunch of colored boxes. Start there.
You question the man (and his successors) to whom Jesus gave the Keys to Heaven? Read the Bible Matthew 16 and beyond.
Saints are exemplary Christians worthy of fondness, devotion, study, reverence .... like our favorite uncles who we esteem very highly.
No Protestants are Saints and nor will they be.
Nobody raises Mary to quasi divine status...but she sure was the first Christian, 100% human but full of grace, she was blessed as was the fruit of her womb, Jesus.
Holy Mary, mother of God, pray for sinners, now and at the our of hour death....we need it!