"Catholicism is no different to Islam," said Dave Jones on Facebook.
In one sense that is true in that they are both an Abrahamic faith.
Catholics are supposed to be loyal to the Pope, which makes Catholicism SUPRANATIONAL.
Muslims are supposed to obey God's commandments as set out in the Koran. This means every country can interpret the Koran in a way that suits them.
Catholicism is very hierarchical and centralised because it requires loyalty to a living mortal.
Islam says "Here is the Book of God's Actual Revealed Word. You interpret it the way you see fit that is in accordance with Truth, Justice and Reason. The nation that does this best will be happiest and most glorious."