Instead of having a fiction god who harshly judges humans for their sins, it would be better to comprehend the science behind human behavior and don't make situations for them to develop any bad actions.
And most importantly don't make humans brains to be able to develop evil in the first place.
I did not just focus on islam... I see them as like any other religion (but islam is worse at ranking when you search which is best religion, you can google it to find out)
Its not insult, its just the truth.
A fictional character can't heal anybody, first you need to prove your god exists and than I can respect that character which I will than able to believe is alive.