Your rationality is unjustifiable
Says the one thinking two characters with no advanced Haki, barely BFRing a nerfed Yonko, stands a chance against 2 full powered ones. Even if Kid got ACoC, he's still solidly losing since he needs all advanced Haki to stand a solid chance of beating Big Mom, Law meanwhile though would just need Future sight since he can't get ACoC, and internal destruction with ACoA would be useless given his best attacks do the same thing.
With his OP fruit, and great BIQ, just future sight is enough to make him a powerful top tier, still won't be beating Blackbeard given how much he's set up though to face not just Shanks, but also Luffy, Law unfortunately is destined to lose, shame given he's one of my favorites, especially since the man might even die.