Creation destroys as it goes, throws down one tree for the rise of another. But ideal mankind would abolish death, multiply itself million upon million, rear up city upon city, save every parasite alive, until the accumulation of mere existence is swollen to a horror.
Every dad who loves his daughter is not going to want her to go with the penniless slacker loser poet bum, when she could go out with someone who's successful.
Oftentimes what happens is that the writer understands one character, but they don't understand the other one, and the other one ends up not being written as well.