I admit some confusion of the idea that Toni Morrison is successful only because she was taught in schools. Schools aren’t known to push literature in classrooms published within that year on a nationwide scale (outside of specifically librarian association recommendations or something like this, a scholastic books thing). From a brief Wikipedia read, The Bluest Eye was published with Toni Morrison was nearly 40 and didn’t sell well, so it makes no sense why that’s the one taught in schools.