Well, Author-san, thanks for explaining why most of the cast is not spermified, but well ... that explanation about Kaname and sodomizer Cop being there ... well, it is not a explanation at all. In fact, if Rei the Allmighty is hurt by males using the stick ( that probably has some uber edgy Freudian excuse :/ ), that would not be a extra reason for killing them? Sure, not spermifying them makes sense given what it is said on this chapter, but allowing them to live is reckless ...
That said, TBH I think that this wil end with Kaname taking Rei down in someway ... after all Kaname thinks he is God and he will not acept such a minor thing as fighting a incarnate planet-god to upset his path to Tokyo U