"Y: The Last Man" leans heavily into its identity-driven premise, with many characters defined primarily by gender and sexual orientation. The show frequently foregrounds ideology over nuanced character development. Some viewers may feel that forced representation takes center stage rather than organic storytelling, especially as new characters and plotlines are introduced to align with modern ideological trends.

Traditional concepts like masculinity, family, and even religion are regularly questioned or undermined throughout the series. The show often subverts gender roles, casting men and traditional values as passé or regressive, while elevating female and nonbinary characters with few real flaws or limitations.

The narrative largely presents a single ideological viewpoint, with dissenting or traditional perspectives relegated to villainy or mockery. Conflict rarely arises from genuine disagreement; instead, opposition tends to be framed as ignorant, extreme, or malicious. Sincere pluralism is largely absent.