"'White soldiers will not shower or sleep in the same barracks as African-Americans. Mixing African-American troops with whites will weaken a unit's cohesion. ' These are arguments that opponents of integration were making 50 years ago," said David M. Smith, spokesman for the Campaign for Military Service, a coalition of gay and civil rights groups battling the Pentagon's ban on gays. "Substitute 'gay' and 'lesbian' and it's the same arguments being heard today. The common denominator is prejudice."
January 1, 1970
https://en.wikiquote.org/wiki/Unit_cohesion