Well I assure you that it has an answer....you have never obviously asked the right Christians....
What people fail to understand is the reason why God has allowed this situation to go on for so long.....
What was the point of the exercise that is outlined in Genesis and finalized in Revelation?
Humans, under influence of the devil, (God's first rebel) were basically told that God was a liar and that they were better off making up their own minds about what was good and what wasn't....so how are we doing on that score after thousands of years of trying to do things without God's interference? He stepped out of the picture for a reason...to allow his human children to see for themselves what it meant to try and live a peaceful and happy life without him. When have we ever had such a life? We all know we want it, but we can never achieve it....why?
God also had rebels in his other family who needed to learn the same lesson about obedience to their Sovereign Lord...the maker of the rules and the enforcer of his laws.The first rebel ensnared others with his lies....and these powerful creatures could do real damage. This is why the whole lesson was conducted in their time and not ours. (2 Peter 3:8) God's entire family of intelligent creatures were going to benefit from this lesson.
In Genesis it sets the scene for all that comes after. The results and impact of sin were felt when the pair found themselves evicted from their paradise home and all that went with it. They would now have to till cursed ground to eke out an existence and raise their children. Within one generation, murder was committed and this set things in motion for all that followed. Humans would go on proving how inept they were at trying to govern themselves....allowing emotions to dictate their actions instead of God's commands.
Pride, jealousy, covetousness and all manner of negative feelings would now be displayed in their interactions with one another. Any peace they enjoyed was taken away by someone imposing their will on others.
God's command to the first pair was to "fill the earth", so God allowed them to do so, despite the fact that sin was now in the world and part of the human psyche. Yet the Creator never left them without his guidance, should they wish to accept it of their own free will. He would not force them to obey him, but would ultimately punish them if they disobeyed.....this is what happened in the garden. They knew the penalty before they ate of the fruit and death did eventually overtake them, but not before they experienced the heartbreak of pain and suffering before death came to them.
We are taking part in the greatest object lesson in the history of the world. The outcome for ourselves is what we choose to do with the life we have been given. It will either be treated as a precious gift along with all the wonders of creation that still tell us how great and generous our Creator is....or we will be like spoiled brats, whining and throwing tantrums because 'Daddy' didn't give us everything we wanted.
How much of what we lament as "wrong" in the world is all our own doing? How good could life be if we had just done as we were told in the first place?
If we are parents, what is it that makes us proud of our children? Isn't it the fact that they do what is pleasing to us, not only to demonstrate that they are mature and can see the folly of caving in to selfishness, but because they can see that our life experience (even the things we are not proud of) can save them from repeating our stupid mistakes. Isn't that the reason why we repeat the same mistakes time after time? We never learn the lessons of the past.
We hope that they will consider what impact their behavior has on others and if you stand back and look at the world......imagine if everyone did that? What is stopping them? They are.
Are you getting the reason for the lesson yet?