A 20 year old son living with his parents and flipping burgers doesn't understand why his father keeps working on him to go to college or go to a trade school. Life is good. He's earning enough money to pay his car payment, gas, insurance, and his entertainment. Why would he drop the good life to go do something hard like that? So Dad begins to take away privileges, make the nest a little less comfortable so his son will be willing to move on to maturity. Son doesn't like the changes, thinks Dad's being a jerk, doesn't understand the vision of his future that Dad sees. Over time, it gets bad enough that Dad feels his only choice is to send his son out to fend for himself, to learn first-hand what it takes. Son is cast out and starts to learn life the hard way. With each hardship, his anger towards his father grows. Son never does figure it out. He eventually finds a humble little corner to exist in and ekes out his existence in manual labor, never realizing the need to grow up and work toward the future, to become a man.
This life is but one big training ground. It is not our destiny. It is not truly our life, it's where we're to learn to trust the disciplines that the Father puts us through because only He knows where we need to be far down the road, in eternity and what He sees for us - Proverbs 3:5.
If you want to be angry at God for doing what father's do, that's up to you.
I have to ask about people like, well let's take a few:
(1) James Cameron -- not flipping burgers by a long shot.
(2) Hugh Hefner -- he never had "hard times" as described above.
(3) Angelina Jolie -- not much of a troubled life as described.
(4) Thomas Edison -- quite a scientists.
See, these are all atheists who by the story given above should have all seen such hard times, sliding downward until they got on the right track. But they didn't. They have great successes and to the world's standards, great maturity.
See stories like above are invented to propogate this idea that God is behind all the bad things that happen to people to teach them something and pull them toward Chrisitanity.
But God has a much better way to draw people to Himself. He calls. His presence is so overwhelmingly full of grace and mercy and love that people feel the call.
But in this world, we have been given free will. God has given us the unique ability to choose: to choose Him or to reject Him. He doesn't contrive false situations to "force" us to one day try to climb out of our problems toward him.
I had no such problems in my life. Grew up Catholic and then rejected God. I wanted to be atheist, but could only get to agnostic -- because He kept sitting on the edge of my bed and talking with me. He kept calling. He wouldn't leave me alone. But He made it clear that it was my choice -- that if I really wanted atheism it was my choice. But His love won out. He called, I responded. He didn't make me poor. He didn't give me some disease to overcome; no handicaps.
He didn't need to hurt me. His Love was powerful enough of a call to capture me. Perhaps for the list above, they really wanted to walk in the curse; to strive against God's favor. But He didn't break Cameron's legs; didn't inflict Hefner with polio to get him to turn. He simply calls. It is our choice to answer.
Even the famous athiest Richard Dawkins admitted that there might be a God, but that he refuses to believe in one choosing instead to believe in science. To him it is more compelling. And to my knowledge, God has not been a "jerk" to Richard. No, my bible indicates that God loves him and wishes that he doesn't perish.
God is Love. He does NOT use the curse to achieve His will.