@ToothyMaw,
More questions to open up more possible conclusions than an argument based on taking a different philosophical stance, is he intention. But if you're more comfortable using traditional disputational philosophic processes, no probs. Whatever's comfortable.
It is understood that your OP, among other points, is asking an assessment of the idea that some evil actions have ongoing bad consequences and therefore can be rated on a scale of evilness with greater evil being that which has longer ongoing bad consequences(i.e.(1)).
If you agree in general terms this is close enough to your intentions, then the question is put, "Can some evil actions become seen as evil only after an appreciable period of time has elapsed?". To which you agreed, yes?
It is understood point (2) of the OP is the assertion that if the evil action's consequences continue to the present, that scales up the original evilness of the action. Agreed?
If you answer yes, then this question could be asked. "Does the older the evil action, that's consequences are still felt in the present, the more evil is that action mean that the oldest of such evil actions ( with current consequences) should be, for example, condemned more actively than more recent actions ( and adding your agreement to the time gap question regarded as evil sometime after their commission)? ( put another way, be considered worse morally?)
If you agree then at this point the question can be asked, " Are all recent evil actions ( recognized as such immediately or subsequently) never going to achieve equal or highest evilness status until the older evil actions are deemed to no longer have consequences?
Can you see where this is leading? Off subject you may claim perhaps rightly, but also perhaps into a morality of evil minefield, you may agree.
Apologies for tardy replies, just a slow thinker.
self deprecating smile