They don’t hire history teachers.
They hire coaches and make them teach history.
.
The reason they are coaches is because they didn’t like academic subjects, but could carry a football.
That is why the students don’t learn history.
.. or write history books. It's mostly propaganda to promote elitism. What surprises me somewhat is that the intellectually lazy college crowd hasn't discovered some outstanding films on the subject, such as "Escape from Sobibor" and "Defiance". You might think they would at least screen those between bouts of Marvel comic fare.