God hates evil, so why does He allow it? Since God is only good, He can only allow it as long as something good will come from it either immediately or in the long term.
After living several decades on this earth and going through many experiences, I think that I am qualified to say that sometimes we humans don’t know our upside from our downside. Sometimes we get the goofiest ideas and we adamantly persist in the idea that we’re right. Our goofy ideas are going to lead us into a pit. Our kind and loving Father can only look at us in amazement and sigh. Then He has to set about arranging situations to get us back on the real right path. His methods at times are intended to shock us out of our stupor.
That’s a very simplistic way of looking at it, but we cannot see how to navigate our way in this dark world. God has to constantly rearrange us. Sometimes difficult circumstances are the only thing that will lead us back to Him.
On a grander scale, it’s the same with humankind. We, of our own selves would ultimately destroy ourselves with our ignorant ‘knowledge.’ We use our brains for all kinds of research that ends up creating things that will kill us better. Nowadays, we have engineered seeds, engineered everything, ‘new and improved’ things that God originally created perfect. How can you improve on perfect? We humans think we can. Foolish.
As a consequence, we can only see the error of our ways when our own foolishness turns around to bite us in the proverbial butt. We can only reject evil and choose good, if we see the consequences of evil and make a conscious choice to act positively in our lives. As a result, the consequences of our bad choices surround us.
Even people who are not religious are able to see what’s wrong and make decisions to do good. They see the wrongs in this world and they decide that they will help out their neighbor or contribute to a cause. A lot of good happens because someone read about trouble somewhere in the world and people want to help alleviate some of the pain. A lot of people are realizing that some things were better before technology made them more ‘perfect.’ Each one of us has inside ourselves the ability to make our own choices against the evil that we see both in ourselves and in our world.
In the end God does not so much allow evil, but rather He wonders: why do we?