The quote highlights how Robert A. Heinlein’s work, particularly 'Starship Troopers,' began to attract a dedicated following that focused intensely on specific themes or ideologies represented in his novels. This phenomenon is reflective of a broader trend in both literature and politics, where certain narratives or ideas resonate deeply with particular groups, often leading to more polarized interpretations. Heinlein, known for his intricate exploration of societal structures, militarism, and individualism, crafted stories that triggered passionate debates and allegiances. 'Starship Troopers,' in particular, serves as a prime example—its depiction of citizenship, service, and civic duty invites analysis and differing viewpoints. Some readers admire the novel for its gritty realism and philosophical questions, while others interpret it as an endorsement of militarism or authoritarianism. This dichotomy illustrates how complex works can become focal points for ideological affiliation. Moreover, as Heinlein's influence grew, so did the tendency of readers and critics to reduce his expansive body of work into a single issue or ideal that defined their understanding or support of his ideas. The trend of single-issue fandom, as mentioned in the quote, mirrors the increasing polarization observed on the political stage, especially in American politics, where nuanced perspectives are often overshadowed by more rigid allegiances. Heinlein's ability to evoke such passionate responses positions him as not just a science fiction writer but as a catalyst for ideological discourses, making his work emblematic of the cultural and political climate of his time—and ours.