This would be a comment on the movie, not the book (I haven't read the book). Watch this clip: notice what's missing?
Yup. People who aren't white. A somewhat common theme in 1970s and 1980s-style post-apocalyptic film, alas: apparently, Caucasians are apparently particularly prone to survive the End Times. Either that, or Hollywood had a bad habit of not hiring minorities for crowd scenes, let alone supporting roles.
The application of irony in this is left as an exercise for the interested reader.
PS: Yes, I know: it hasn't happened yet, so we don't know that it won't turn out this way. Still, I think that we've safely avoided a world where the young are running it (and apparently, literally into the ground)...
This is not quite a 'real' CfD, but it is kind of interesting:
If only to remind folks that doom-mongering has been going on for quite a while. I also have some critical things to say about the short alternate history story "Dispatches from the Revolution" - which is a story that draws heavily on RFK as a change point - but I haven't decided which website to put it on yet.