If you notice in Article 2, there are two other conditions that must be met equally in addition to Islam, i.e., (b) No law can be passed that contradicts the principles of democracy and (c) No law can be passed that contradicts the rights and basic freedoms outlined in this constitution.
Of course, if the Shia ignore the provisions of the constitution, which has been approved by 78% of the people and a higher percentage of Shia, then all bets are off. They can't veto the constitution. They can amend it or abolish it.
What if the Shiite Iraqi PM (60 percent of Iraq is Shiite) does as he has promised and establishes Sharia Law?
a) No law can be passed that contradicts the undisputed rules of Islam.
(b) No law can be passed that contradicts the principles of democracy.
(c) No law can be passed that contradicts the rights and basic freedoms outlined in this constitution.
Article (13):
1st -- This constitution shall be considered as the supreme and highest law in Iraq. It shall be binding throughout the whole country without exceptions.
2nd -- No law that contradicts this constitution shall be passed; any passage in the regional constitutions and any other legal passages that contradict this constitution shall be considered null.
If the Constitution has any meaning, then the rights and basic freedoms outlined in the document prevail if there are any conflicts with Sharia Law.
Article (14): Iraqis are equal before the law without discrimination because of sex... .?
...ethnicity, nationality, origin, color, religion, sect, belief, opinion or social or economic status.
What's the question? The constitution protects the rights of women. In fact, it [Articel 151] states that, "A proportion of no less than 25 percent of the seats in the Council of Representatives [Legislature] is specified for the participation of women.
Based on your questions I don't think you have read the Constitution. You don't seem to appreciate the significance of its adoption, which required close to 9 million Iraqis to brave the threat of death or injury in order to vote. They seem to believe that it is an important document that has some meaning and influence for their future.
I believe in giving freedom to the people - but it must be real freedom, not Islam, at least IMO, Real freedom does not exist under Islam.
Without knowing your definition of real freedom, I can only respond by saying that countries like Indonesia (the world's largest Muslim country), Malaysia, and Turkey are democracies, however imperfect. Tunisia is fairly democratic having emerged from the days of Habib BOURGUIBA's one-party state. The Islamic fundamentalist party is outlawed.