Extreme self-sacrifice beyond fusion: Moral expansiveness and the special case of allyship

Crimston, DanielHornsey, Matthew J.2026-01-012026-01-010140-525XPubMed:31064584ORCID:/0000-0002-4529-786X/work/162951634https://hdl.handle.net/1885/733801218As a general theory of extreme self-sacrifice, Whitehouse's article misses one relevant dimension: people's willingness to fight and die in support of entities not bound by biological markers or ancestral kinship (allyship). We discuss research on moral expansiveness, which highlights individuals' capacity to self-sacrifice for targets that lie outside traditional in-group markers, including racial out-groups, animals, and the natural environment.enExtreme self-sacrifice beyond fusion: Moral expansiveness and the special case of allyship2018-01-0110.1017/S0140525X1800162085063376079