Well, you can write a book,, but you can't write it without errors. Your book would not say about scientific findings some 1500 years from now, it will not tell about past things which no one knew, it will never have the law, lifestyle, history, predictions and more and more.
Arabs were masters of their language when it was at its zenith, but yet accepted Islam. You know why? Because they said it's not the word of a human being. No one, not a single linguistic person among them was able to create a single verse like Quran has.
You are talking about writing a book. You can't fight us because you can't fight the God. The Supreme of all. May you all get the righteous path or else. The choice is yours, this short life or eternity.