Well considering that the "Cain" of the yukkurihood is Marisa, she may deserve it even more than the Reimus, Reimu may have deibu tendencies, but, let's be honest the Marisas aren't better, if not worse since they may proactively push fellow yukkuris to their death while they "escape".
Though it doesn't matter much, shithead is shithead, kill them all and let mister god sort them out.....not like they would be much to sort out to begin with.