Actually the Left has commented through the entertainment media. Margaret Attwood's The Handmaid's Tale is a well written, highly praised work which indicts evangelical Christianity in fable the way we indict the fact of Islamic Fascism. There are many lesser efforts, usually in the realm of made for TV movies that portray Evangelicals inthis fascistic authoritarian image.
One quibble I have with your post is that bin Laden and his cohorts are not akin to the Pope or the President of the Latter Day Saints, or the Archbishop of Canterbury. And there are a few in the Christian world who have threatened fire and brimstone to those who do not accept Jesus Christ, and who see misfortunes and disasters as signs of God's displeasure. The difference I see is that they do not seek to implement God's wrath themselves unlike bin Laden and the Mullahs who see themselves as the instruments of Allah.
The difference is that those preachers of hell and brimstone are sayiong God will punish you, they arent sending out Suicide bombers to carry out that threat.