Mungu ametupa free will. He is not a dictator. He has given us choice to make. Remember, despite the fact that he created Adam and Eve, he gave them choice whether to obey his instructions or not. Normally if we obey GOD'S instruction then we will succeed and enjoy the fruit of the land, if not then He doesn't have a choice. If someone chose to leave a sexual immoral life and his he died with HIV, it's obvious his kids will become orphans and in this case you cant never blame GOD. If one chose to drink or smoke poisonous substance and ends up getting cancer, we he blame GOD? No he would rather have to blame himself. The bible says whatever a man sows that he shall also reap, GOD is not mocked.
If a circumstance is allowed by GOD to happen, then it always temporary, in the right time GOD will make a way. But if the circumstance is caused by a human being, then it's up to that individual to seeks GOD'S mercy, if HE does GOD will help him if not then GOD cant force him. Hell has been created for satan, but a human being has a choice to either go to hell or not. GOD has given us a free will he doesn't control us like robots, if we choose to obey GOD then this world will become a better place.
Another good example is what is happening in Burundi, can you blame GOD? Absolutely not, it's rather human being who makes the world not to be a better place to live and not GOD.