This report focuses on the teaching of Critical Race Theory and radical gender theory in American classrooms. Taken together, those concepts comprise radical cultural left ideologies known as Critical Social Justice (CSJ). The findings of this report suggest that the teaching of applied versions of Critical Race Theory and radical gender theory is endemic in American schools. Ninety-three percent of a random sample of 18-to-20-year-old Americans say that they have been taught, or have heard about from an adult at school, one or more Critical Social Justice (CSJ) concepts. In fact, the average respondent reported being taught and/or hearing about more than half of the eight concepts this study measured. Even assuming these are overestimates, schools and teachers promoting CSJ narratives can hardly be regarded as rare or isolated occurrences. Rather, it is the experience of a large segment of American high school students, if not the majority.