That is not a terrifying, unsettling, angry or demeaning statement. That is a blessed fact.
All men are fallen and all men require the merciful grace of God through faith in Christ in order to be saved.
Roman Catholics would benefit by wearing mental blinders which would erase all dead saints and queens of the universe and "alter Christus" from their minds in order to concentrate on Jesus Christ alone.
And Calvinism and his flawed followers are inconsequential to future of Catholicism and the salvation of its billion plus adherents.