Dawood "I fail to understand, how does this put a limit to God’s powers (natural or supernatural, whatever) to create something as He WILLS?"
Dear brother, Allah limits Himself to 'Godly' acts not ungodly ones. He demonstrates by this denial of having a child that He only does Godly things and the way He rejects the accusation allows us to use this knowledge wisely to reject virgin birth? Nothing.
If Allah said BE and Jesus was conceived, then He had a son.
If Mary was a hermaphrodite and conceived herself, then does the Quran or Bible have Jesus or anyone else telling this as a means to 'prove' he was the messiah or believe in God because of this act? No! So what was the point of virgin birth.
'Be' can be seen in the following verse:
2:117 The Originator of the heavens and earth: when He wills a thing to be, He but says to it "Be" – and it is. [Qaul = Saying = Thought. Badee' = Initiator = Originator = One Who creates from nothing = The Impeccable Creator]
There are levels of understanding in this that can be found when we read other verses like:
21:30 Are the disbelievers not aware that the heavens and earth used to be one solid mass and We exploded them asunder? And that out of water We made every living thing? Will they not, then, acknowledge the truth? [Here is a clear allusion to the Big Bang theory. Numerous celestial bodies came into being and started swimming along in their orbits. Almost all modern astrophysicists believe that this Universe has originated as one entity from one single element, hydrogen that, in stages, became consolidated with gravity and then broke apart into celestial bodies. (Muhammad Asad). 21:33, 24:45, 36:40, 79:30]
So we can see a natural evolution/creation going on once the universe was created and not fully formed stars, humans etc in an instantaneous miraculous act of God. Likewise, when Allah said Mary would have a child, she went away, got married, conceived and HAD A CHILD.
Virgin birth is a pagan concept where their idol gods impregnate females to produce demi-gods.
My God is God, not god.