Why do you criticize Roman Catholics?

Because their church is the greatest enemy of true Christianity identified in the Bible (Dan 7:1-28; II Thess 2:1-13; I Tim 4:1-3; Rev 17:1-6). While this is a shocking statement to most modern ears, nearly all evangelical Christians believed and understood it just a few generations ago. The popes of Rome and their manmade religion took Europe down into the Dark Ages for over 1200 years with unspeakable atrocities committed against Bible believers during that time. Nearly every belief and practice they hold is diametrically opposed to the word of God.

See Also

Evidence that Catholicism is not Christian: Is Catholicism Christian?
Evidence that Catholicism is Anti-Christ: Is Catholicism Antichrist?
More evidence that the pope is the antichrist: The Antichrist.
The blood of true saints: The Martyrs.