God forgives, and so do I.
And although the idea of forming a "League of Justice" is an appealing fantasy, I really don't think that's the way. If I disagree with someone's opinion, I listen to their reasons for holding it and examine it. If I still disagree, then I state mine and explain why I hold it. But we must each take responsibility for ourselves and for what we say, and in the end what matters is "Faith, Hope and Love, and the greatest of these is Love."
I can disagree with someone's opinion, yet still respect their right to hold it.