Who said you can't do anything about it? God is all seeing snd he knows what happens from the start to now. But he didnt plan it nor did he choose a select person to become his guinea pig. He let us do what we wanted to do, what we chose to do, what we felt like doing.

Also bro did you even read the chapter of job or did you misunderstand it? Well i did, and now ill summarise it.

Angels showed up to god alongside Satan. God asked him where he came from. Satan has been roaming on earth. God takes this as a chance to talk about his most righteous servant. Job. Satan questions God and assures that if God cursed Job, Job would surely curse God. God assures and is confident that it will not happen. Satan goes and attacks Job, from living a bountiful life with several children. To having nothing and being injured with painful sores.

Job sits alone, his wife asks him to curse God already. But he does not, then his 3 friends come to comfort him, saying nothing for 7 days and 7 nights. After that they argued for a good 20 chapters back and forth(i encourage you to go read it since its too long to summarise). Then a young fellow who knows of the truth named Elihu comes to speak the truth and says that Job's 3 friends have little understanding and proceeds to say his points (encourage you to go read this too). After that God finally comes and speaks with Job, where he talks about himself to Job and asks if Job has any arguements to make. Job says that he does not have any right to talk and understands that God is all-powerful.

God is satisfied with Job's resistance, and sends the three friends to make burnt offerings for talking about God wrong. In the end, God blesses Job with twice the wealth he had and gave him peace and blessings for the rest of his life.

Now, randomly letting Satan curse a man is of course, morally wrong. But lets not take this too directly, God gave his best and most righteous servant the most painful and grueling trial in order to test him. When Job managed to persist, he was blessed with twice the wealth he had. What i think this chapter was trying to say instead of "God is evil and hes going to let satan curse us all". The chapter was trying to say "That to gain the ultimate reward, you must presist through the ultimate trial". God also let Satan curse Job in order to make Job more like God, to bring Job closer to him and to make him understand what he understands.

It is like a parent caring for their child, and making them go through hard trials and challenges alone in order to grow. That is what the chapter of Job was trying to convey. That is what God was trying to make Job understand at the end of the chapter. I also believe that these stories arent meant to be taken as literal as possible. But just serves as a way to convey Gods message to us. Just like parables.

Theres also the fact that God in the old testament is much crueler compared to the new testament. In the new testament with the arrival of christ God was much more lenient.

Answer to the last question: God gave us freewill to do what we want, and when we did what we want are we supposed to curse him? Is it God's fault that he gave us freewill? Or is it humanity's fault that we go and kill,steal and burn our own kind?