Sakumo Hatate is Kakashi's father, so of course they will have the same name.Now name a Hatake, not related to Kakashi.
Lee is not a clan, neither is Haruno so what's the point of this thread? Everyone in the series isn't from a clan.Some characters simple have their family las name, like Sakura and Lee.
What a stupid comment.What ability does Karin, Naruto, and Nagato have in common? Naruto has shown no skills in the art of the Uzumaki fuinjutsu, and neither has Karin or Nagato.Beside large chakra,which isn't an ability and is a trait many character in the series have, the Uzumaki we know have not one ability that common among them.
try re,
How can someone be too useless to be a part of any clan?Not really an intelligent thought there.Not to mention, you have to be pretty stupid to consider Sakura useless.Even before you take into account her other skills, just being a medical nin destroy any notion of her being useless.