The essence of sin is a u-turn agape
You sound like a ninja. The whole of sin wrapped up in one sentence. So agape, sacrificing things yourself for the benefit of others. Now your definition is sacrifice but for things for yourself. The trouble is a lot of sin involves no sacrifice, greed, gluttony, sex. Some is indulgent by both parties.
So it falls apart even at the first glance. You are taking a word iniquity, meaning sinners all around, including the person themselves, and again trying to call this a condition and not a state of being because of an act of sin.
In moral terms, a murderer is no different to anyone except they murdered someone. This is the basic 101 of morality.
You could believe sin is actually a demon, which forces behaviour on people, but it does not make it true. You could read it into all scripture, a small twist, but it is simply denying what morality is or sin.
You could say the reality of righteousness or the kingdom of heaven is the parable of the vine. Being part of the vine, you are alive and real, apart, you dry up and die. Now that is biblical, straight from Jesus.
You are so convinced about your idea, but it denies the reality of what we know of life, and the reality of Jesus becoming a man.