Ingroup cohesion can occur without producing outgroup hostility or prejudice.

Evidence

Contrary to earlier wisdom (e.g. Sumner, 1906), Allport suggested that, while the presence of another group, especially in conflictual situations, can increase ingroup cohesion, such cohesion need not lead to prejudice and outgroup hostilities (p. 42). In fact, he proposed that ingroup attachment and preference are psychologically more primary motives and that outgroup hostility usually stems from other sources, an argument that has been resurrected in recent years (Brewer, 1999). — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice, 427 (#corroborates, via linked claim)

Contrary to earlier wisdom (e.g. Sumner, 1906), Allport suggested that, while the presence of another group, especially in conflictual situations, can increase ingroup cohesion, such cohesion need not lead to prejudice and outgroup hostilities (p. 42). In fact, he proposed that ingroup attachment and preference are psychologically more primary motives and that outgroup hostility usually stems from other sources, an argument that has been resurrected in recent years (Brewer, 1999). Although Allport acknowledged that, in strict logic, an ingroup always requires the existence of some outgroup, he argued that this does not mean that the ingroup necessarily needs to be defined in relation or opposition to this outgroup. — , Rudman, Laurie A - On the Nature of…, 427 (#corroborates, via linked claim)

Categorization

• XREF: connects to: Glorification may be reducible through political rhetoric without harming core group attachment. — Bernhard Leidner et al., Ingroup Glorification, Moral…, 115; Ingroup cohesion need not produce outgroup hostility; hostility has separate sources. — , Rudman, Laurie A - On the Nature of…, 427; Intergroup discrimination arises from ingroup favoritism, not outgroup hostility. — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice: Fifty Years…, 182 (+10 more)

Broader Connections

• Ingroup attachment does not necessarily produce outgroup hostility #corroborates (0.98) — John F. Dovidio, Peter Glick, Laurie A. Rudman, On the Nature of Prejudice, 427
• Ingroup cohesion need not produce outgroup hostility; hostility has separate sources. #corroborates (0.97) — , Rudman, Laurie A - On the Nature of…, 427