As a white person that grew up and still lives in the south, around bigotry of all flavors. Learning the truth about our past is sooooo important. The history of the human race is not usually a particularly pretty history.
But, just like we should want a better life for our kids than we had. We should also want our kids to grow up and become better adults than we were. The only way that will ever happen is if we are honest about the good, and the bad.