The difference (ringing bells) between this and other sexual orientations like homosexuality is that those are focused on other adults and people can make their own decisions (under normal circumstances where people are free to choose). Sexual desire towards children means that adults focus on children who do not have the maturity to make a decision about their involvement nor the means to protect themselves if they are assaulted or abused against their will in some way.
I can imagine that people using child-like sex dolls would also indulge in child pornography and this in itself is child abuse and horrific for the children who have been exploited.