This book, in one paragraph says (paraphrased) 'child porn depicts children as wanting sex which can make abusers rationalize their actions' and in the next 'child porn focuses solely on the genitals and the children depicted appear frightened and confused and are clearly taking direction from someone off camera'
And while I know these can both be true statements about some child porn, I doubt that it's often the same pieces. I find anyone who thinks it's not worth including valid qualifiers like "some" "most" etc. to be untrustworthy as they frequently state as fact things that are simply untrue without making a bevy of assumptions.