Thanks for providing those quotes. As a former devoted evangelical Christian turned God skeptic, I concur with your experience with atheists. I left Christianity not because of some "hatred" of the idea of God, but simply because after looking at my religious beliefs through a more critical eye and reading deeper into the bible I found no reason to be a believer anymore. My church had very kind and loving members, I believed in and loved God very strongly, and I really enjoyed being a Christian. If the kind and loving God I believed in were proven to be real, I would have been very happy. But current evidence (and lack of evidence), and rational arguement points toward that not being the case.
These quotes you provided show a deep intellectual dishonesty in the characterizations of atheists by the author. In trying to demonstrate how atheists are hateful people, he's really shown his own hateful nature. Too many times a false image of atheists is created to argue against, or a particularly violent atheistic viewpoint is chosen to make an emotional rather than logical argument (like if we chose Timothy McVey to represent all anti big government religious conservatives).