If God/Jesus' creation "got so wicked, and murderous and human sacrificing, and perverted, and demonic and dangerous" then that speaks very poorly of the abilities of your so-called omniscient, omnipotent God. He knew, for most of eternity, before he ever made Adam & Eve, how things would turn out. Yet He went ahead with His pi$$ poor design anyway, knowing what would happen. He knew He was going to have to drown them all. That's really sick.
What Nation?
How well is the plan working out? The whole Jesus trip was a complete waste of time and effort. It was as poorly planned and executed as His original creation.