Have anyone realised that the clans in Konoha is actually in-breeding? or else, how did kiba's mom have the dog, AND kiba's father have also? they must be committing incest as we speak!
ino and her father have the same funky hair and the same power. i mean, they must have very similiar DNA and another proof of incest!
i suggest that kishi actually 'mix it up' after konoha got nuked. this proves that, pain is wrong. peace do not make one complacent, incest makes one complacent. afterall, what says arrogant more than being able to rape your own sister and then make babies and pass them your clan powers?
with this, its no wonder that uchiha got rooted out. seeing how gay itachi and sasuke are, i think the elders are just trying to stop homosexuality from taking place in konoha.