I take the issue of child abuse very seriously. Since these images are, for the most part, evidence of criminal acts, they are understandably and properly interdicted and criminalized. Nudity, however, is not in itself a sexual act, much less a criminal act. It is a condition of life itself. Artists in all media base their creative work on what they see around them.
Writers write about their family's daily life.
Painters paint their wives bathing, the groceries on the table, the unmade marriage bed in the morning light. Photographers photograph their loved ones doing all kinds of things. And, predictably, a lot of the time those kids are buck-naked. This never used to be a problem. In some states, they even passed laws making the photo-processing companies liable to prosecution if they failed to report any such material.