Why is the supposedly rare Mangekyō Sharingan have seven users now? [I'm not including Kakashi because his eye is Obito's]
Mangekyō Users: Sasuke, Itachi, Shisui, Madara, Izuna, Obito, and Fugaku
Even more so: Why do even more people have the rinnegan?
Ex: Sasuke, Madara, Obito, all seven Peins, and the whole Ōtsutsuki clan
