User blog comment:Observer Supreme/Germa 66 Sanji/@comment-29391896-20170403025538/@comment-29391896-20170413035043

He'd become king, if Judge, Ichiji, Niji and Yonjo were beaten/killed/exiled And they're the people he hates the most.

And your not listening to my point, it's likely Sanji is the true heir if he shares the exact same genes with Judge with mofications aka same eyebrows. Giving Judge a good reason to hide them.