To answer this question, you need to know our religion first.<quoted text>Taeb you seem like a reasonable person, let me ask you...doesn't is seem a little reckless of Abd al-Malik to build the third most holy site in Islam on top of THE most holy site in Judaism? What do you suppose was the message he was trying to send?
Let me explain to you what means the word ISLAM,
It means peace, purity, submission and obedience. it means submission to the will of God and obedience to His law.
All prophet who lived in that region ( Jerusalem ) were pure, obedient submitted to the will of God.
And that means, all prophet were Muslims,
Islam is not an ethnicity, all people around the world can be pure and obedient to the law of God,
God ordered us Muslim to follow his prophets.
That's why Jerusalem is holy for us.
a mosque can be built or destroyed by any human being.
but the Holiness does not go away, always in our souls
This is an answer to your question in my opinion.