I've seen that link before!
Although the Catholic Church do have errors in Doctrine they still believe that Jesus died for their sins, the Antichrist we must rememberexalts Himself above all that is called God, lets see for ourselves:Daniel 11:37 - Neither shall he regard the God of his fathers, nor the desire of women, (nor regard any god): for he shall magnify himself above all.
The Antichrist will rise out of the Islamic Religion:2 Thessalonians 2:4 - Who opposeth and exalteth himself above all that is called God, or that is worshipped; so that he as God sitteth in the temple of God, shewing himself that he is God.
This is referring to the rebuilt temple in Jerusalem and not the seat where the Pope sits.
God Bless!