It's the only decision in the face of devastation like that. But I'm not exactly in any state to rush and do it myself [ which is killing him ] nor do we even know how to go about it, so I doubt if there's any immediate action to take. While we learn more, I'm sure we can learn more about the impact it will have. There will be a way to destroy her without harming more than necessary.

[ because Demons Get Killed, so why wouldn't there be a beneficial way to do it!! ]