“I’ve been asked why it is especially wrong for Christians to speak of their opponents in a demonizing and dehumanizing way. Historic Christians believe that our sin has made us worthy of condemnation and hell.
From those living respectable lives to those leading criminal lives, all of us fall infinitely (and therefore equally) short of loving and serving God in the way that is due him. Therefore, we can only be saved through Christ by sheer grace.
The Westminster Confession of Faith 15:4 say “As there is no sin so small, but it deserves damnation; so there is no sin so great, that it can bring damnation upon those who truly repent.” (Rom 6:23; Gal 3:10; Is 55:7; Rom 8:1)
So Christians can never feel morally superior to any one else at all. That means (MAIN POINT) when we call out evildoing in others, as vital as that is, we can never imply by our attitude or language that they deserve God’s condemnation, but we do not.
Therefore: “the Lord’s servant must not be quarrelsome but must be kind to everyone, able to teach, not resentful. Opponents must be gently instructed, in the hope that God will grant them repentance leading them to a knowledge of the truth…” (2 Timothy 2:24-26)
Right now our very social fabric is tearing apart because of, among other things, increasing, mutual demonizations ON BOTH SIDES. Christians must not contribute to this in any way.”