Islam does not permit unbelief let alone converting to Christianity. They do not understand choice....Islam has taught them obedience to the Koran (mUhammed)...and Christians are their enemy. Your commet would be like asking a Christian to accept the Koran and then they will burn their Bibles....that would not happen any more than Muslims accepting the Gospel.
Muslims are accepting the Gospel today. Checkout the Crescent Project. Now if we could just get more Americans to do likewise maybe we wouldn't have this rampant social and political decay.