Perhaps because the first group doesn't have as much time/effort sunk into learning to use the current social safety patchwork, so changes to it are less scary.
Also, they don't need to keep up any self-denial that well-paying jobs will magically return for coal-mining or buggy-whip manufacture.
Also, they don't need to keep up any self-denial that well-paying jobs will magically return for coal-mining or buggy-whip manufacture.