At one time we too were foolish, disobedient…. Being hated and hating one another. But when the kindness and love of God our Savior appeared, he saved us.
Titus 3:3-5, NIV

Christians are sometimes accused of hatred for their refusal to yield on biblical truth. We must never be what others accuse us of being. Though we must not compromise biblical truth, we can offer God’s Word as the only medicine for a sick world. If others refuse to believe, we can grieve over them, pray for them, share Christ with them, be kind to them, differ with them, ask God for patience with them, and when appropriate, avoid them.

But hatred?

The world can shout “hatred” all it wants, but we cannot let one red strand of a hateful attitude embroider its way into our personalities. Don’t let bitterness become rooted in your heart. It’s tempting to feel hatred for those who don’t agree with us, but there’s no room for that. “Bless those who curse you, do good to those who hate you, and pray for those who spitefully use you” (Matthew 5:44).

Leave the rest to Jesus.

The followers of Jesus are children of God, and they should manifest the family likeness by doing good to all, even to those who deserve the opposite.
F. F. Bruce