Just one clarification

Hirsi Ali is an Atheist who knows nothing of islam. She have never in fact practiced Islam or studied it

Have you actually read her book Infidel? Her Criticism were all revolving around practices in her own culture which are tribal traditions not Islam

The Arab world has many Liberal intellects that have sought reforms like Mohammed Arkoun

http://en.wikipedia.org/wiki/Mohammed_Arkoun

Sadly, The Mullahs have made sure that the general public outcast such intellects