I want to recommend this video of the journalist Johann Hari speaking about the threat to free speech by religious fundamentalism (his examples are reactions from Islam).
One of the things he says is:
"A religious idea is an idea someone had a long time ago they claim to have received from god. That's it. It doesn't have a different status to other ideas. It is not surrounded by an electric wire fence called respect that none of us can cross. All people deserve respect, but not all ideas do."
Basically, his concern is that the right to criticize religious ideas is being challenged (and he has the death threats to prove it), that fundamentalists want to be "free to say whatever they want and the rest of us have to shut up and agree."
YouTube - Independent Voices 5x15: Johann Hari on free speech and religious fundamentalism