Predicted response: "rape is different than bullying".
Yes, but the point is if your conscience won't let you perform your role in your voluntary extracurricular activity, then go home! You're allowed! Nobody is forcing you to be there! You don't have the privelege to refuse to fulfill your role AND stay in your role. If you just can't bring yourself to do it, then choose to leave the activity.
Apparently this school finds no moral problem with allowing convicted assaulters on athletic teams. But they do have a problem with students objecting to that policy.