I believe Sanji’s character is inspired from Lebron James, who similarly is a pathetic loser with multiple daddies (Dirk, Durant, MJ, Kobe, Paul Pierce to Sanji’s Daifuku, King, Zoro, Killer, Vergo etc.) and need someone else to do all the work to succeed in life (Kyrie winning 2016 championship for his sorry a** and Judge-sama increasing Sanji’s power from Gifter level to YC1 level in couple of seconds with gene stuff.)