I'm sure you don't either.
Don't be do sure cofty. There is a lot that you have not seen or know about.
It is like a person who won't listen to reason, does what he wants, sees things his way, you try to to show him -but he refuses to see. He will see alright. It is something like that.
What you are saying about slavery and the horrific things that happen, those who see God also see and experience that too but don't blame God, They realize that God gave someone a lot of power and trust, someone whom he loved very dearly and that person betrayed God and God is going to stop that person but such person is causing the horror, not God. That is what the Bible says is his defense against charges against him.