The various Bible writers, especially Moses, recorded a detailed law outlining what God considered "good" and "bad". He was instructed to make that law known to his people. How was it possible to judge according to the law, if there was no clear definition? We teach our own children to discern the difference, do we not? Is God an absent or irresponsible parent?
Isa 45:7 has been used by others to prove a point. But if you read the preceding verses, you will see that it is directed to Cyrus, the king of Medio-Persia as one used by God to restore Israel to their homeland after their 70 year captivity in Babylon.
He told Cyrus,
"I am Jehovah, and there is no one else. There is no God except me. I will strengthen you, although you did not know me, In order that people may know From the rising of the sun to its setting That there is none besides me. I am Jehovah, and there is no one else." (Isa 45:5, 6)
To this one he was affirming his sovereignty over all the earth, letting a pagan king know that he can bring light to those who seek it and calamity to those who seek to defeat his purpose. Babylon was a very powerful nation, confident of its invulnerability, but in one night, the armies of Medo-Persia under Cyrus, took the city in exactly the way that God had foretold.
Cyrus the Great — Watchtower ONLINE LIBRARY
Your argument is not supported by this passage at all.
Not at all, when you consider that the whole of creation is now in a state of alienation from its Creator. Nothing in the world at present is as God intended for it to be. Humans were not at first given a knowledge of evil. In order to gain that knowledge, man suffered the death penalty. It was the only activity in Eden that resulted in death. If it was serious enough to warrant the death penalty, what was the benefit of attaining it? Has man been better off with this knowledge of evil?
We instinctively know that this is not true. Whenever we see injustice, or hate, or violence, or inhumanity, or pollution, or filth, we recoil because we know it shouldn't happen. When tragedies strike, we groan inside ourselves because we are not equipped to deal with them, either man made or 'natural'.
Death is all humanity has ever experienced, yet it is as foreign to our psyche as it ever was. Death was not supposed to happen to us like it does to animals. Humans, made in God's image, have no capacity to deal with it. We grieve, sometimes very deeply, even when we hold a belief in a better life after death. If death was supposed to happen, then we would be 'programmed' for it like the rest of creation who experience the circle of life. We have no program for death.
Understanding that everything in this world is governed by God's adversary, we can understand why Jesus came to "break up the works of the devil" (1 John 3:8) By him doing that, we get back what Adam lost for his children in Eden. i.e. everlasting life in paradise on earth. (Gen 3:22-24)
Bad things happen to good people because all humanity is under the devil's world rulership.....it was "delivered" to him by God in order for him to prove his claims to be a better god and ruler (Luke 4:5, 6).....but not for much longer, as we see "the last days" of this present age drawing to a close. (2 Tim 3:1-5)