That is religious abuse, and my abuser did that too. Forgiveness does not mean you let it go and allow it to keep happening. It means you don't 'hold it against them' anymore. But just as you said, it's a lifelong process for people that were abused repeatedly. I like how you brought in the concept of justice. From God's perspective, he sees the abused and the abuser both as broken people in need of redemption. If a person asks forgiveness, they should be repentant, as in, they do their best to not repeat the harmful behavior again. That said, it is not a requirement that the abuser asks forgiveness, and repeat for an abused person to forgive them. Forgiveness is an internal concept. Rather than forgive and forget, allowing the abuse to continue, you forgive and protect yourself. That's basic boundaries.Perhaps forgiveness is not a one and done transaction. It could be a lifelong process like recovery, a component of recovery.
I also know that Christian belief includes justice for victims. How does Forgiveness exist alongside Justice if Forgiveness is wiping the slate clean in the matter of a two minute prayer? Then Justice is obsolete.
My abusers used that against me. I was to forgive their abuse no matter what because my faith required me to wipe the slate clean with them over and over again as though it never happened. So the abuse just continued...until I got away of course. You could say their Christianity included Forgiveness for themselves but none for others and definitely did not include Justice.
But mine does. Mine includes Justice.