It's not extreme, it's normal and healthy to exclude abusive people from groups. Your position, keeping them, is the extreme one and it's abusive to those whom

It's not extreme, it's normal and healthy to exclude abusive people from groups. Your position, keeping them, is the extreme one and it's abusive to those whom he abuses. You're concerned about a slippery slope that doesn't exist, your position is based on fear of a possible bad future rather than the reality of an abusive person actively hurting people in the present. If you support someone by continuing to employ them, when they are known to act this way, you are complicit in their abuse. Forgiveness applies after someone is accountable for and have changed their behavior; it has no relevance here.