LOL
I plan on not answering the question and if I do get a call I will be asking them why the color is important and(play the liberal handbook) I find it racist and insulting that you want to know the color of my skin as I do not see it important.
We all our humans bla bla.
The race questions are because of testing requirements. Schools are required to break down groups of students every conceivable way and compare their scores to averages. They want to make sure that no group is being slighted.
As for detention, it is harsh. But many parents are lazy idiots who won't follow through on anything unless something for their kid is at stake. The information must be gathered because they are accountable for it so they threaten you to try to make sure you cooperate.