I think the competition with the Soviet Union and the fear of a Communist insurgency inside of the US forced our business interests and conservative elites to compromise with the libz to keep the status quo sufferable enough for most Americans. https://twitter.com/pcdillard/status/1038521174966390784

"Proof that the Court's opinion striking down segregation was important in the Cold War is evidenced by the State Department's use of the
decision. An hour after the decision was handed down, the Voice of America was broadcasting it."

Brown as a Cold War Case

https://www.repository.law.indiana.edu/cgi/viewcontent.cgi?article=1164&context=facpub

"Racial discrimination furnishes grist for the Communist propaganda mills, and it raises doubts even among friendly nations as to the intensity of our devotion to the democratic faith."

"The continuance of racial discrimination in US remains a source of constant embarrassment to this Government in the day-to-day conduct of its foreign relations; and it jeopardizes the effective maintenance of our moral leadership of the free and democratic nations of the world."