The problem of evil and the concept of God are irreconcilable

As my opponent rightly pointed out, I bear the heavy burden of proof of demonstrating that the idea of an omnipotent, omniscient and omnibenevolent being is irreconcilable with the existence of evil and suffering in this world. In other words, as my opponent puts it:"[My opponent] has to be able to prove that God doesn't have a good reason for allowing diseases, tornadoes, etc." I will begin by briefly presenting my contention and will then address my opponent's points.Why do I believe that the existence of the tri-omni God is defeated by the problem of evil? Well simply because allowing the subject of your unlimited love to suffer when it is avoidable is logically incoherent; if you love someone, then you do not want them to suffer, especially needlessly. Now the obvious response to that, which my opponent has indeed brought up, is "how do you know that God does not have a reason to allow suffering?", which is a good question. Here's my answer:If God is in fact omnipotent, meaning that he can do literally EVERYTHING (he is limited only by the laws of logic), and is in fact omniscient (knows everything about the future, the past and the present), then it follows that God is necessarily able to achieve whatever goal he has in mind WITHOUT requiring people to suffer. Whatever his endgame may be (salvation or otherwise), he can simply make it happen without ANY requirement. The only possible way out of this would be to claim that suffering IS God's ultimate goal, but that would get rid of omnibenevolence.I would also like to express some concern regarding this idea that God "allows" evil and suffering (as opposed to being the cause of it). In a model of reality where God created the Universe KNOWING what was going to happen, this God is ultimately responsible for everything that happened (and will happen) since he specifically CHOSE to create this particular Universe instead of another. And by the way, this model of reality is inconsistent with freewill.Now on to my opponent's points."It is because of Adam's free will choice that physical evil entered the world" Let's imagine that Adam and Eve did in fact exist and that the Genesis account is literally true (which it isn't), how moral is it for someone to punish an entire SPECIES for the crime of a single person? Especially when that "crime" is as puny as disobedience? Would and omnibenevolent being really act in such a cruel and unjust manner?"By the goodness of God we mean nowadays almost exclusively hislovingness; and in this we may be right." Yes, that is the definition I'm using."And by love, in this context,most of us mean kindness. . . . What would really satisfy us would be aGod who said of anything we happened to like doing, "What does itmatter so long as they are contented?"" I also agree with that."Furthermore, most theists do not believe that God created us merely for happiness in this life but also, and most importantly, for eternalhappiness with him in the next." Glossing over the fact that there is no evidence for an afterlife, what is the point of THIS life (the one we currently experience) if the ultimate goal is to be happy in the NEXT life? Personally, I would want my kids to get the maximum amout of happiness RIGHT NOW. "So his omnibenevolence should be judged neither by our limited human standards of goodness nor by what happens in this world alone." So we can not judge God's actions? Would God disagree with my assessment of cancer as "evil"? If does disagree, then omnibenevolence goes right out of the window. If he agrees, then he should get rid of it (omnipotence necessarily implies that he can). Given the fact that cancer exists, we are stuck with two possibilities: either God does not WANT to get rid of cancer (making him immoral), or God simply does not exist."Putting these things together, we can recognize that an omnipotent,omniscient, and omnibenevolent creator might have good reasons fortolerating abuses of human free will that lead to evil and suffering." No, by virtue of being omnipotent, there can NOT be a reason for God to "allow" suffering, unless he WANTS it.I await my opponent's answers.