In most if not all cases, real forgiveness cannot even be considered until those who have been abused have come out of the darkness of denial and have begun to feel the weight of wrongs committed against them. Forgiveness means a willingness and desire to cancel the debt that is owed to you because of the far greater kindness God has shown. Yet, in spite of the fact that the debt owed to us is real and enormous, our debt to God is infinite. The price God paid, the life of His own Son to redeem us from our sin, is a gift that can change our perspective toward those who owe us an enormous, but lesser, debt. It is this freedom to love that God desires to share with us.
Miracles still happen.
God can enable us to desire mercy for the abuser. The ultimate good is that offenders themselves come to terms with their sin of sexual abuse and experience the power of the cross of Christ to forgive them. This could mean baking a cake or sending a birthday card. This will temporarily hurt the abuser. It may disrupt his life and cause him to be afraid and angry.