It's in the alt-text haha, but, Charles L. Black, Jr., The Lawfulness of the Segregation Decisions, 69 Yale L.J. 421 (1960)
The whole thing is like eleven pages!
(It's available here: openyls.law.yale.edu/handle/20.50...)
But how often were the Curries among that WWC versus management-inspired or otherwise paid to try to create division and undermine labor? Reuther and Meany were not exactly "woke".