You've asked a question, but you've expressed you disappointment and disgust with some of the opinions/answers you've received.
How are you deciding which answers are right, and which are wrong? What rule, what guide, what plumb-line are you using? In short, how do you know whether you are right about the nature and behavior of God?
You see, the difficult question you need to answer is "By what standards do we judge God's behavior?" What moral code can we call upon, that exists independent of Him and His creation? What judge do you appeal to, that you can sue God in front of to accuse Him of unfair behavior?
Some of us believe that God is capable of not been silent in history, and we believe His words and actions have been documented for us to understand Him by (and, to answer another charge, we believe He is fully capable of maintaining the accuracy of this documentation). Rather than insist He modify his behavior to fit our opinions, we allow him to correct our misunderstandings about Him.
All I'm saying is that you may not like the answers you hear, but that doesn't automatically mean they're not right.
Well yes. Happens all the time.
However, in this instance, Islam defines its belief in God as the God of Abraham as found in the Bible. Islam's full understanding of God is skewed of course, but they worship the same God as the Jews and the Christians.
I automatically discount the opinions of people who put themselves in God's chair and decide for themselves the fate of another's soul. None of us can know how far God's mercy reaches.