Again with the slander that has no basis in reality.
The Roman Catholic Church does not:
mix law with grace - specific examples and theology to back it up or it is just slander
encourage the worship of idols - horsehockey, pure slander, read the doctrine and learn something
require anyone to pray to Mary or to any other Saint
The Pope and Cardinals are elders, you are harping on a title, get over it.
Peter was a Bishop, should he have called himself something else to soothe your sentiments?
Speaking of idolatry, protestants should not be too quick to cast stones. Bibliolatry is an ongoing plague amongst protestant churches. They love their Bible, they adore their Bible, the say they love Jesus, but the refuse to follow his commandments. What did Jesus say "if you love Me, follow my commandments". So, it is apparent that their love for the Bible far exceeds their love for Jesus, is that not blatant idolatry?
You were commanded by Jesus to confess your sins one to another, a priest, as heir of the apostles, has authority to forgive sins and assign penance, why do you refuse to do what Christ commanded?
The Eternal God has allowed some to share in the redemptive work, just as you pray for loved ones and help in their redemption, so do the Saints. If you do not understand the doctrine, try reading it before you bash it.