What is the deal with this Muslim video that has everyone in an uproar?

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bananaking21 said:
but you shouldnt have the right to mock and insult millions of people's beliefs. 

So we shouldn't criticise racism? Because millions of people believe in the superiority of one race over another.

What about the belief that women are inferior beings? Nope, can't criticise that either, it's a belief held by millions.

If nothing bad is ever said, nothing good will ever get done.