(this was originally posted as a comment to the original Blasphemy Challenge video)
It’s too easy for an atheist to get bogged down in discussion of details. If you really want to start a broad movement, you’ve got to see the big picture, which ironically is the lowest common denominator for what benefit religion gives a theist.
It is not enough to be rational or logical. In fact, that may be counter-productive. That is not to say we shouldn’t be logical or rational, but we must also be strategic.
Because of religion’s near ubiquitousness, theists infer a certain home-field advantage which allows them to frame the debate. It is a huge advantage for theists. They get to choose the topic of debate and they choose their topics wisely — a loss or refutation of their claims doesn’t invalidate their belief system.
We need to take away this home-field advantage and frame the debate ourselves.
Here’s one example off the top of my head. In our culture, belief in god is assumed to be the norm. Atheists are forced to answer why they don’t believe in god. However, belief in god is not the norm, putting the onus on theists to validate their beliefs. Human beings are animals. We’re also the only animals with religion. To deny that religion is not the norm is to deny that humans are animals. It shouldn’t be hard to refute any theist arguement about our relative status as animals. At this point, the theists is forced to justify their abnormal views. It’s just a short hop, skip and a jump to a discussion of how we are not exempt from the laws of nature that apply to every other living thing on the planet. Theists have to justify how they are — again abnormally — exempt from these laws.