Why?
I have to say that of all the world's major religions, Islam is the one that I like least. It's as if they took all the features of the worlds other religions that I don't like, and combined them together.
The question is what needs to be surrendered, and to what.
I suppose that Muslims would say that man needs to surrender his autonomous freedom of choice to God and to God's will. Which assumes that Muslims possess God's true revelation and know what God's will is.
In practice, the most currently influential form of Islam is highly legalistic, a system of what is proclaimed to be divinely revealed law intended for all mankind. It's a law that can't possibly change, since it supposedly comes from God himself.
That divine origin and unchanging nature is why so many Muslims like Islamic law. It gives them a seeming moral alternative to corrupt secular legal systems controlled by brutal Middle Eastern tyrants. And it provides them with a psychological anchor in the face of tempting cultural changes that they fear will undermine their civilization, traditions and identity, changes that often seem to be coming at them from the West.
(Hence their love-hate relationship with the US and Europe, rich and to them loose and libertine places where they simultaneously want to live and cultures that they dream of transforming, humbling and even destroying.)
The unhappy result of the current Islamic emphasis on legalistic Shariah is that Islam has seemingly locked itself into a 7th century dark-ages sensibility and into a deep cultural opposition to what the West thinks of as progress and modernity.