Iirc and
@PuckTheGreat please correct me, Kami like Zazas title “Kami no Ame” is not gender specific to male or female.
If Oda is going to have Sanji fight Zaza, I think Odas explanation will be that Zaza has no sentience or mind of its own therefore it’s more akin to an animal than a person. I still think it’s a big if and oda will find a way to have Sanji save the kids but not hurt Zaza