Take some time to think about it, and if you still feel the same way, let the prosecutor know.

Understand that it's a structural problem why the state considers the crime these people committed more serious than if they'd punched you in the face and knocked out a few teeth, or if they'd hit you with a car while you were riding and both killed you and destroyed your bike.

Those decisions, about what our penal system considers serious, aren't personal to you. But if you refuse to participate in that system, let the prosecutor know. They may or may not take your feelings into account and offer a misdemeanor plea, but in a case like this, they likely will.