Black parents’ lawsuits forced the IRS to revoke discriminatory schools’ tax exemptions.

Evidence

In 1969, parents of Mississippi black children brought suit to revoke tax-exemption status for nonprofit segregation academies (Green v. Connally). They won a temporary injunction in the D.C. Circuit in early 1970 and the suit in June 1971. The United States government appealed to the Supreme Court, where the lower court’s decision was summarily affirmed in Coit v. Green (1971). Meanwhile, on July 10, 1970, the Internal Revenue Service announced it could “no longer legally justify allowing tax-exempt status to private schools which practice racial discrimination”. For a school to get or keep its tax-exempt status, it would have to publish a policy of non-discrimination and not practice overt discrimination. Many schools simply refused to comply. — Wikipedia contributors, Segregation Academy, 12

Categorization

• ADDENDUM: Fits ‘On Sacrifice’ by inversion: legal status as leverage, and the refusal of schools to comply shows how cheap non-discrimination pledges were.