As a Father I would respect my sons wants in terms of how to handle the situation but not with out conversation on the choices on how to handle it. My sons decision might be wrong in my eyes but he could only know and really feel the correctness or incorrectness of his decision if he owns it. Which is to say he will know a week later, a month later or maybe a year later if his decision was correct. It will then form the basis for future ways of handling it if it happend again.
As a coach, I want to know. I would rather battle for a win with players who respect each other and understands team than have a better chance to win with a racist. The win wouldn't feel right to me especially in hs where more is supposed to be learned than a win on the field. The victory would be in what is right with my team and not in having more runs on the board than the other team at the end of a game.