@Qpax I went back to reread 39 and I'm not sure that's quite it.
Here in 93 Denji asks her if there would be any crappy movies because the answer to that question lets him know what Makima's worldview is.
Back in 39 one thing Denji notices is all the other people in the theatre enjoying the movies him and Makima are watching.
But Makima only enjoyed the one at the end so to her only that film really matters.
Denji on the other hand understands that even though he and Makima aren't moved by those films there are others who are with equally valid experiences.
So in this chapter Denji asking Makima if those "crappy films" would exist in her ideal world is like him asking if other people's feelings would be valid in her ideal world.
Makima's world is one she's making for herself, but she believes(or at least seems to) that she's doing this for the good of humanity.
Here in 93 Denji asks her if there would be any crappy movies because the answer to that question lets him know what Makima's worldview is.
Back in 39 one thing Denji notices is all the other people in the theatre enjoying the movies him and Makima are watching.
But Makima only enjoyed the one at the end so to her only that film really matters.
Denji on the other hand understands that even though he and Makima aren't moved by those films there are others who are with equally valid experiences.
So in this chapter Denji asking Makima if those "crappy films" would exist in her ideal world is like him asking if other people's feelings would be valid in her ideal world.
Makima's world is one she's making for herself, but she believes(or at least seems to) that she's doing this for the good of humanity.