I would never forgive a person who takes advantage of those weaker than themselves, or people who try to destroy the lives of others. Why? Because for one thing, it is a christian idea that we should forgive, and christianity was invented by those who were keen to control others, and the very people who were and are keen to control others are usually some of the worst folks walking on the planet . . . they NEED people to believe this doctrine so they can get off free and clear for the shit they do, (you know, war crimes, dronings, bombings, coups in other countries, crimes against their own populace), because if people believe this doctrine, they believe that any transgressor will be punished in the afterlife, by some "just", all-knowing pie in the sky unprovable justice, and are then less likely to consider it so important to see them punished for what they did in THIS life. This is very similar to the "Karma" claim, but if Karma were true, Henry Kissinger would be hanging upside down by his balls from a tree branch.

Ever read Machiavelli? This definitely stood out for me like a soar thumb while I was reading "The Prince" "Therefore it is unnecessary for a prince to have all the good qualities I have enumerated, but it is very necessary to appear to have them. And I shall dare to say this also, that to have them and always to observe them is injurious, and that to appear to have them is useful; to appear merciful, faithful, humane, religious, upright, and to be so, but with a mind so framed that should you require not to be so, you may be able and know how to change to the opposite." - Niccolo Machiavelli (The Prince)