Fujitora did not kill Franky. He could have. With a flick of his wrist, he could have crushed him into a singularity. But he simply stepped over him and continued walking toward the palace where Luffy and Doflamingo were fighting.
One Piece Episode 722 features several key highlights and battles that are worth mentioning: One Piece Episode 722
Episode 722, titled "The Battle Begins! Luffy and the Straw Hats vs. the Big Mom Pirates," continues the Whole Cake Island arc and adapts events from Eiichiro Oda’s manga as the Straw Hat crew execute their infiltration and retrieval plan. Fujitora did not kill Franky
: The panic of the citizens serves to ground the high-level battle in human consequences, reminding the audience that Luffy and Law are not just fighting for themselves, but for the survival of an entire nation. One Piece Wiki Character Dynamics: Luffy and Law But he simply stepped over him and continued