Not surprised. Prager U has been gunning for their propaganda becoming official school curricula for years. It was obvious from the start with their bad info-graphics style and the fact they have been pushing their channel on children for years with the help of YouTube's algorithm. Fascists aren't satisfied with keeping their politics to themselves, they want to forcefully indoctrinate your children behind your back in the classroom.
It's time parents push back. Teachers need to strike. Students need to strike. Parents need to demand en-masse that this be removed from the curriculum or they will remove their children from the school. This is unacceptable.