Each one of the roles you listed above is only passable with AI at a superficial glance. For example, anyone who actually reads literature other than self-help and pop culture books from airport kiosks knows that AI is terrible at longer prose. The output is inconsistent because current AI does not understand context, at all. And this is not getting into the service costs, the environmental costs, and the outright intellectual theft in order to make things like illustrations even passable.