Annihilationism Contradicts the Atonement

Working from the foundation of the penal substitutionary atonement of Jesus Christ (which is established here) we understand that the conscious suffering of Christ while in the body of his flesh on the cross and his death (Isa.53:5-6,8,10-12, Phil.2:8, 1Pt.2:24, 3:18, Gal.3:13, Rom.3:25,4:25, Mt.26:28, Heb.9:15-7,28,13:12, Col.1:19-22, Jn.19:30) made propitiation for us. (Rom.3:25, 1 Jn.2:2, 4:10) Thereby appeasing God’s justice and delivering us from his punishment for all our sins. God is exact or precise in his judgments- Ex. 21:23-5, Lev. 24:19-21, Lev. 19:34-6, Deut. 17:8, 19:21, 21:5, Deut. 25:14-16, Prov. 20:10,23, 11:1, 16:11, Micah 6:11. He demands righteousness Ezk.18:5, 45:9-10, Lv.19:36, Dt.25:15, Prv.11:1, 16:11, 17:15, So, our question here is how does annihilation propitiate God? God is not arbitrary in his justice (voluntarism error). If the penalty for sin is your eternal non-existence what exactly did Jesus do with regards to this? There must be a just weight & measure to fulfill all righteousness. Annihilationism creates a contradiction between the penalties of conscious suffering for sin and unconscious non-existence. Which is just and righteous? Is the penalty for sin both temporary conscious suffering and eternal unconscious non-existence? Temporal conscious existence in suffering and eternal unconscious non-existence without suffering are incompatible opposites, so how could both be equally just?
If annihilation atonement occurred, then Jesus as a temporal man propitiated and not as an eternal person for, he could not have ceased existing as an eternal person. So, how is the eternality measure to be filled in God’s just weights and measures?
In the death of people (death meaning the absence of life, the body without their spirit- Jam.2:26) is basically being disconnected from the physical realm. The bible uses the phrases "under the sun", "under heaven", in the "land of the living" or "on the earth" to indicate life while in the body. The soul sleep doctrine adherents teach that death is the 'absence of existence' in contrast to the 'absence of life'.
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