God doesn't act as a magician, waving a wand and making this happen or that disappear. In the created world Gods acts through the creation. Human are the pinnacle of creation, so God most often acts through us. In the case of child with serious illnesses, through doctors, medical researchers, caring nurses, etc.
I don't actually understand what you mean by any of this. It seems to me that it just sidesteps the question. It's obviously very clear that God is no magician, but that doesn't deal with the question of why. What I want to understand is whether he doesn't intervene because he can't (ie he lacks the power) or because he won't (ie he lacks the will). Logically, it must be one or the other, and merely saying that he doesn't intervene doesn't even begin to address the reasons for this.
Is it a perfect system in human eyes? No, but I would rather have free will than be an automaton. Without free will we are not fully human.
Again, I am struggling to understand what you understand when you talk about free will. Nobody has addressed the questions about this that I asked above. What do you understand free will to mean? Is it individual or collective?
Are we all branded sinners as a result of Eve's exercising of her free will to eat the apple (whether this is metaphorical or otherwise)? Is it a collective decision to turn away from God? In which case, how do any of us have any agency In that? We are simply being punished for the sins of our ancestors.
Or is this free will exercised on an individual basis? If so, how can it be that each and every one of us "chooses" to become a sinner? At what point do we make that choice? Does the fact that we all choose to sin mean that the state of being a sinner just an inevitable part of the human condition, the result of some inherent flaw in our beings? In which case, do we actually have any free will at all, because it seems that our decision to sin is pre-ordained? In what way can we be said to have made a choice?
Also, how can it possibly be free will if humans do not fully understand the consequences of the choices that they are making? Can an uninformed choice genuinely be a free one? I would argue not, and I wonder what kind of parent would put a set of choices in front of their child without ensuring that they fully understood the implications of each option.
Or perhaps people believe that the choice we make is not whether we sin or not, because that is inevitable, but rather whether we choose to put our faith in God, follow Jesus or whatever, but again, as I have already explained, faith is not actually a choice either. You can choose to pretend that you believe, but you cannot actually make yourself believe something when you don't think it's true. And according to the bible, lying is a sin...So if faith is a gift, rather than a choice, where are we able to exercise free will within this?
So please, tell me where is this free will that you speak of? And how does it explain or justify the presence of suffering in the world, because none of what has been said so far makes any sense to me at all. It all seems to be predicated on the presumption of an innate belief in God that we can somehow choose to turn away from or reject, but if that belief doesn't exist in the first place, then any notion of free will surely just evaporates.