Even if someone isn't yet brain dead, if there's no hope of recovery and it's just going to be a long slog of supporting more and more organs artificially until

Even if someone isn't yet brain dead, if there's no hope of recovery and it's just going to be a long slog of supporting more and more organs artificially until either the brain gives up or we hit an organ we can't save, I have no problem with allowing death to come because we stop supporting at least one organ, without which the person cannot survive.