No, I do not believe that *causes* all of these things. Rather, I believe that he primarily allows the consequences of the choices we make, including the extremely horrifying ones, and suffers with us when we suffer. He helps and restores us amidst the calamities of a fallen world and looks forward to the day when his creation is fully restored and the reconciliation through Jesus Christ is fully realized.
God is always working to turn what is evil into good.
Does he *sometimes* discipline? Yes. But not for the purpose of causing pain and suffering. Even with Israel and then Judah, he was preparing the way for a Shepherd and not the seemingly endless line of fallible human kings who mostly did evil and caused hardship and pain for those they ruled (as God predicted they would when the people demanded a king and God allowed it.)
Over and over and over God gives us choices, but does not promise that we will be exempt from the consequences of those choices, or even the choices that others make.
I don't worship God because I am terrified to do otherwise. What a horrible way to live with someone! I worship God because (though not limited to these things) I see his great goodness, his love, his joy in his creation, his neverending compassion even for those who continue to hurt him, and because he is trustworthy and keeps his promises.