Don't forget that the people you supposedly recycle arguments from (Dawkins, Hitchens etc) use quotes extensively, and speak with great admiration of people that were heroes to them. The phrase goes 'If it's not broke, don't fix it' and this is true. You'll see Hitchens et al quote Hume, Spinoza, Lucretius, Einstein, Russell, Jefferson, Franklin and so on throughout their books because they are people who had good ideas and worded them in elegant ways.
Similarly, some of their own arguments appear flawlessly presented in the words they use, so why would I make what would probably be a poorer attempt at making the same point when I can make it concisely and clearly by using their wording, or very similar?
Similarly, some of their own arguments appear flawlessly presented in the words they use, so why would I make what would probably be a poorer attempt at making the same point when I can make it concisely and clearly by using their wording, or very similar?