There needs to be no state for that. Guardians ad litem already sorta perform that role, and they could be privatized, subsisting on tort awards for cases of abuse.
I'm not against protecting kids genitals from mutilation. Arms being hacked off are impossible to hide. No inspections necessary to reveal the harm.
I'm against creating a state power to mandate genital health.
Tort actions in private courts in a competitive market, complete with Yelp! reviews would suffice to meet the need. If a jury found the parents guilty of causing such harm, there'd have to be a just sanction.
Dunno how it'd actually all work out, but it couldn't be worse than what we have in family courts now. There is no more foul bastion of evil than American family courts, anywhere, nor has there ever been.
I was a single father because my ex's parental rights were terminated. I cannot describe the hellish corruption I contended with, and only because of competent counsel was I fortunate enough to be able to raise my sons.
RE: So, you're saying that your religion is based on genitally mutilating your children?