What's Wrong with Innocence of Muslims?

Vile, disgusting, blasphemous, defamatory, crude, boring, undignified: these are a bunch of the derogatory adjectives (generally the same, repeated ad nauseam) used innumerable times to describe the film Innocence of Muslims posted on YouTube.

What is exceedingly hard to find, in all the judgements written and spoken by its detractors, is a discussion of its contents and a reasoned, argued reply to them. In other words, the reasons why this film should be considered vile, disgusting etc.

If there is something that shows how these people, usually leftists and assorted anti-West ideologues, have totally lost not only the intellectual battle but also the intellect is this condemnation of a movie, that in most cases they haven't even seen and know nothing about, only on the basis of the say-so of Muslim mobs and leaders. They are so immersed in their suspended-reality world populated by myths like religion of peace, moderate Muslims and Islamophobia that they don't even recognize the necessity of arguments and reasons (or even reason, in the sense of rationality).