Ever get the feeling that the struggle to get by makes it impossible to have the energy or the time to storm the barricades? That's what American capitalism has achieved in 2018: maximum depression. And that's why Cochran's 1958 song of angst plays on to this day.
These women are not simply simulating scenes of poverty for the reader; they experienced it and now they own it as one constant facet of their diverse identities.
In Star Wars: Episode VIII - The Last Jedi, politics becomes class politics. More explicitly, The Last Jedi is about working-class resistance.