Reincarnation

First, the supposition: If something is even slightly possible, it must be considered.

Second, once considered, even if on the fringe, if that consideration is the simplest and "fits" best, than the validity of that consideration must be listed as viable.

Reincarnation blunts the trauma of the situation of an evil world, an all powerful god- as long as the creatures possess free-will, both during physical life and in the after-life.

If each human creature "chooses" its life freely, possessing foreknowledge of the circumstances, then god is not cruel but just.

The cruelty would be in the loss of memory upon birth, although there might be reasons why this is the case, especially when past memories before physical life would inhibit the creature learning a lesson it volunteered to learn, I.E. knowing the answers to the test, opening the cocoon for the caterpillar, etc.

If physical life is a temporary condition, chosen by the creature, then despite suffering and evil acts, first, the suffering is chosen beforehand, second, the suffering is temporary, third, if all souls have chosen their life-path, then all of the actions are synchronized and mutually beneficial and chosen.

This also might involve a temporal distortion, in that while on the earth plane, creatures are here for what seems like a long time, but is actually very short. There is only an illusion of temporal longevity- the earthly life is short, eternity is long, actually timeless.

Also, on the earth plane, the material mindset dominates, while spiritually, the material is inconsequential as a final reality but necessary to as a containment field to fix whatever cosmic original sin is plaguing mankind. It is a paradox.