What are "Friends"?
And why are agnostics libertarian while atheists are liberal?
Friends = Quakers
I had the same question and my theory was that agnostics are more libertarian because they're less likely to have an agenda, while atheists tend to be "secular humanists." Also, atheism is a big social stigma, so nonreligious conservatives would likely opt for the agnostic label moreso than liberals, especially given that the atheist stigma is stronger in more conservative parts of the country (I would argue libertarianism is closer to conservatism, on balance).