I think you have a good analysis of the book and characters but I don't know how you missed the part about daisy being one of the most disdainful villains in literature. I don't see her as a passive character that has zero agency. Yes, the male characters project essentially on a blank canvas as some other commenter noted. I don't think she's as innocent and passive as people see her as.

She strung Gatsby along since they were younger knowing he was poor and there was no realistic future for the both of them. This is what drives Gatbsy to become wealthy but his wealth is ill-gotten and the old money families will never mingle with nouveau riche people on any significant way. Parties yes, marriage or dating no. Her and Tom in my opinion mirror each other in how they use people from "lower classes" to their own ends. >!Which essentially leads Gatsby taking the blame for Myrtle's death and his own demise.!<

This is why I don't believe she's a passive character, she's just as bad as Tom. It's worse because she's also a big hypocrite. The novel is supposed to be one of the first representations of class warfare and how the rich are amoral and reckless and their status and wealth protect them from the consequences of their disgusting actions. >!Myrtle, Gatsby and Myrtle's husband are just casualties of Tom and Daisy's game. !<