The whole system is designed to produce a variety of living things to fill every niche, and whatever input is necessary to jump start that system is also designed. I think @Argon correctly noted that the “bad design” argument does not apply to my model, since nature has plenty of autonomy. So it is not that I am dodging your question per se, it is just that it does not apply to what I believe happened. Under the thread “best arguments against design” I already laid out an experiment which, if it produced enough of the right kind of change, would be my example of a “best argument against design”.