User blog comment:FortressSwan/Confusion & What I Believe to be Contradictions/@comment-4556104-20130222010016

I agree whole-heartedly. Too many Kekkei Genkai floating around, along with Sharingan, Eternal Mangekyou, Rinnegan, Wood Release... Look at the Helixian Clan or whatever they are called. It's at the point of ridiculousness.