The first commercial uses of photographs were two.
1) It replaced, virtually supplanted and killed, lithography. In other words, technical drawing of existing outdoor objects was replaced by photographs of those objects. In this, it was objective.
2) It supplemented and cut into the trade for portraiture. This had already been done to some extent by the silhouette, which was a poor man's portrait. So it filled a niche between having one's portrait painted and having one's silhouette drawn. In this, it was subjective, as every good portraitist knew to flatter their customer according to the customer's wishes.
The battle then diverged to the group that insisted that to be accepted as an art form, photography must imitate painting (the Pictorialists) and those who claimed that photography must depict things as they are (f/64 or Straight Photography).
But photography has failed to do what it is told to do. It may be objective - or subjective. It may be technical, precise, emotional, evocative, literal, or abstract.
Photography continues to evolve because the tools are evolving. With more ways to speak come more things to say.
Is painting dead? Is music dead? Is writing dead?
Photography is not 'one thing' - therefore it will not be classified as one thing. Even if one form of photography falls out of favor or become technically obsolete (Polaroid manipulations, say).
I think photography's demise has been greatly exaggerated.
I note with some irony that Newsweek does not have a Lithograph on their front cover. Nothing but photographs, for as far back as I could click:
http://www.newsweek.com/id/128648
Perhaps photography could ask if Newsweek is dead?