Also this whole gravity>light argument is useless because the amount of gravity it takes to mess with light is also>magma, ice and pretty much every DF.
Yet we don't see people saying gravity>magma therefore fuji beats Akainu or Gravity>ice, therefore fuji beats aokiji.
Kizaru being a light man isn't even a disadvantage considering the level of gravity Fuji posses. Hell being a light man actually puts him at an advantage against fuji's level of gravity as opposed to other simply because fuji doesn't even have enough gravity power to affect light as he does to standard objects. Turning into light will just make this easier for Kizaru tbh
Black hole gravity>>>>>>>>>>light>>>>>Fuji's meteor pulling gravity U_U Kizaru high diff