Catholicism is the devils religion. It is the harlot imposter of the bride of Christ, a modern version of the ancient religion of babylon, its head is the antichrist, its false priesthood filled with vile sexual immorality, its worship of mary and prayers to the dead are idolatry, its mass is an abomination to God, its communion a mockery of the body of Christ, and its history is filled with the shedding of true saints blood. It damns men to hell by selling them a false christ, a false atonement, and a false sense of peace with God through an unclean altar.
With such an unholy abomination that my Lord Jesus Christ hates I make no terms of peace. To those who call themselves my brethren and think that their acceptance of such a hellish organization makes them more loving than I am, I make this charge. You have been deceived into this state by the golden cup of her abominations and your position indirectly leads other men into damnation. In the last days God has sent his angel to call men out of her midst, so why would anyone who loves Jesus comfort those who are still within her grasp? 
Unity you say? What unity has Christ with the devil? Please think about this dear brother, dear sister.
Revelation 18: After this I saw another angel coming down from heaven, having great authority, and the earth was made bright with his glory. And he called out with a mighty voice, “Fallen, fallen is Babylon the great! She has become a dwelling place for demons, a haunt for every unclean spirit, a haunt for every unclean bird, a haunt for every unclean and detestable beast. For all nations have drunk the wine of the passion of her sexual immorality, and the kings of the earth have committed immorality with her, and the merchants of the earth have grown rich from the power of her luxurious living.” Then I heard another voice from heaven saying, “Come out of her, my people, lest you take part in her sins, lest you share in her plagues; for her sins are heaped high as heaven, and God has remembered her iniquities.