I think you have a different definition of ceiling/floor raiser than everyone else. It’s not about winning.

To me, and most of the other people I’ve seen define those terms, a floor raiser elevates their entire team and makes their teammates better. So someone like Jokic or CP3.

A ceiling raiser is someone who has the potential to make an already good team even better. KD is the ultimate example of that. He can’t lead and carry a team, he can only add to an already good team that can do without him, with the Warriors as an example. He failed in Brooklyn because he was supposed to be the leader and he clearly is not one. He failed in Phoenix because that honestly wasn’t a good team, and Booker who technically is the leader isn’t a floor raiser either. The success of his stint with the Rockets is not dependent on him, but how well their core does next season.

Curry and Kawhi are outliers in that they can be both. With Curry’s skillset and playstyle, you can plug him into any team and he raises your ceiling. At the same time, his gravity gives his teammates the space to play well, which is why KD had all the space in the world with GS, because everyone was busy trying to stop Curry. Kawhi is a ceiling raiser by definition, but he was so good in his prime that he could carry an entire team on his back even without raising the floor of his teammates (i.e. Toronto).