You must see your own hardness, of heart in order to reach someone who has been hardened by Christians. Yes, we love each other, but we fling those words easily when we become angry. Be angry and don’t sin. Don’t let your anger keep going after the sun has set. When you become that angry, should you be telling someone else their sins? I guess some will, but they are not perfect. God says all of us are sinners. Our nature is even sinful. None is perfect. We become hardened to the fact that we are not sinning. We walk in our perfection, and point at everyone else. It happens. People judge you by what you say, and do.