For a pluralistic society where "everyone is equal", it is. Why? Because we believe that God became Man, and the Man is the best of us, and we're all to be called like him, while many will fall short.

To these Godless people, it is an abhorrent thing to call someone a sinner, because in the absence of God, we're all gods, we're all perfect, we're all equal; and so do you really think these people will understand what the Church is as anything more than a fan club for Jesus? Of course not, because they are spoiled whores who never had to taste actual struggle born in constant reminder of mortality- these are bourgeois, over-educated harlots who should be taken down from their pedestals and trampled on.