Federal court rulings, not legislation, ended legal segregation-academy operation.

Evidence

Segregated private schools lost their tax-exempt status in Coit v. Green (1971). Virginia was also the first to be told in federal court that segregation academies were unconstitutional (Runyon v. McCrary (1976)), leading to their decline. — Wikipedia contributors, Segregation Academy, 16

Categorization

• XREF: Parallels other library material on how judicial decisions rather than legislatures drove civil-rights enforcement.
• QUESTION: Did loss of tax exemption actually close schools, or just push them into non-discrimination paper compliance?