[drothamel]

I think that sportsmanship is one thing, and safety is another. If, even as a fan, you are concerned for the safety of the girl in question, they you should say something to someone. As far as the sportsmanship goes, I think the first place to address it, since you said you are an official, would be with your local association. If other officials notice it, the commissioner of the association, etc., then it has a much better chance of being dealt with at a higher level.

If I'm on the field/court, the "take her out" comment MIGHT warrant a technical foul for being unsportsmanlike. I don't know about soccer and the yellow card, although I imagine similar standards apply. Of course, there is always a context for things like this, which is important.

I agree with SoFL, that the racial slur is a flagrant, no question; and the "on their knees thing" is definitely a technical.