Are you forgetting about the fact that "put to justice" means using government sponsored courts and increasing the authority of the state police? Just like all issues involving children, parents have too much control, and that can lead to abuses. When the state seeks to end those abuses, though, it isn't doing so because it supports equal legal status for children, but because state agents think that they have an ethically-derived authority over children's lives, and they envision themselves as children's protectors. If you support children being recognized as having rights independent of adults, supporting expanded state-based protection against parental abuse will not achieve that goal. Indeed, established public policy on laws against physical harm to children has been "
help instead of punish". This specifically applies to corporal punishment, which, on the one hand, is a traditionally accepted way of treating children, and, on the other hand, has much more obvious negative long-term repercussions. So the German courts have established this ridiculous double standard that severely punishes types of child abuse practiced more commonly by minorities while merely chastising for more severe abuse that is popular among the majority demographic. Essentially, they've turned this reasonable law against physical and psychological harm into a law against causing harm if you're a Jew or Muslim. Thus, the German government is really enforcing standards concerning who can influence children. (If this anti-harm rule were really about supporting children's rights, courts would have been even tougher on parents who practice corporal punishment.) As a net effect, that's more harmful than the very small number of circumcisions that will be prevented due to this law.