Just as simple as a parent can’t understand why their 4yr old won’t listen when being naughty, God factually spends an entire Testament of the Bible arguing with humans. Why did he not snap his fingers and make us act right? Because as another said here, God “rolled the dice” on how an animal would behave with free choice. No other animal on Earth has such a gift.

And so Christ arrived so God could in fact gain the “human” experience of our best and worst. “Forgive them Father. They KNOW NOT what they do.” He asked God to forgive us if our sins, and the greatest sin of all, just following orders or peer pressure to torture and kill another human whom was innocent. Because why? Humans do stupid shit, and Christ needed the intimate experience to understand the faulty piece/gift he gave us, and how far we would take it. Yes God designed us this is true, but we were his first experiment with giving the gift of free choice.

And it is a both wonderful and tragic gift to be sure, as no other species has done the wonders and damage we humans have period.