"Then said Jesus, 'Father, forgive them; for they know not what they do.'"
Holy Bible, Luke 23:34
Don't hate unbelievers. Feel sorry for them.
When someone hurts you, curses you, sins against you: don't do to them the same. Feel bad for them. Pray for them. For they don't understand what they're truly doing. They don't truly understand that they are endangering themselves, and working their way toward hell fire.
If they knew what they were doing, they wouldn't do it.