Over the past decade, inter‐ and intra‐movement coalitions composed of organizations within the Lesbian, Gay, Bisexual, Transgender, and Queer (LGBTQ) and immigrant rights movements have formed at the local level. These coalitions speak to a massive organizing effort that has achieved some rights campaign successes. However, coalition unity that culminated in “wins” like marriage equality came at a cost. While both movements expanded and unified, they simultaneously ossified around goals that matter to the most privileged segments of their respective communities. The result is a paradox: coalitions do sometimes form within and across movements, promote enduring unity across seemingly divergent movements, and facilitate rights campaign “wins.” However, coalitions simultaneously reinforce hierarchical exclusions through the continued marginalization of issues that uproot conventional power dynamics, like police violence, economic inequality, and gender justice. This essay argues that the construction of a common “civil rights past” identity within coalitions can help to explain this paradox. The development of this collective identity expands movements, occasionally thwarting the power dynamics responsible for the centering of the interests of the most privileged constituencies within social movements. However, the episodic nature of rights‐based campaigns simultaneously contains and undermines the formation of this collective identity, reinforcing movement divisions based on race, gender, and class.