Yes they should offend their students because history is offensive.
We should also teach about the Holocaust and read the uncensored version of huckleberry Finn, even though it may be offensive.
People (students) will be offended but they will learn how history has changed, be able to think for themselves, and not fall into ideological line. If this scares the left/right establishments that is a great thing.
Living in a 1-party state would suck.