Board Thread:Theories and Speculation/@comment-3001903-20160813042916/@comment-25122992-20160825090026

Well, we don't even know what it means to be "compatible" with the Tailed Beast and what would happen to the "incompatible" host. Although this term was mentioned from time to time (for example, in the flashback of Gaara's birth, where Chiyo stated he was the only child of Rasa combatible with Shikaku), it was never explicitly stated what are the exact requirements of the "compatibility" (Special chakra? But to what extent and what kind of special?). Also, there's an example of Minato who himself admitted he wasn't meant to be a Jinchuriki (that was the reason of him using the Reaper Death Seal instead of any other), but after the reanimation, he appeared as a pretty powerful Jinchuriki anyway.