“God is VERY specific about why faith in Jesus is necessary for salvation.”
So, in your belief, what happens to the Abdul Six-Packs of the world who are born Muslim, never have an opportunity to embrace Christianity, but go through their lives doing good and striving for peace?
There is a difference between a Muslim learning the truth about Christ and rejecting it, and a Muslim who has never learned about Christ.
It is the rejection of Christ, the turning away from the faith, a resolve to ignore the gospel that God finds unacceptable.
A Muslim who learns the truth about Christ and believes it, will no longer be a Muslim. He will be a Christian. Having the opportunity to learn of God’s all-encompassing love, this Muslim would have no choice but to believe on faith. It is this conversion that makes God rejoice.