I’m not sure what your point is. Are you saying that because Greek and Armenian Christians fought amongst themselves 1000 years earlier that it negates the Ottomans’ attempt to exterminate them? And yes, this is history, but the Pontian and Armenian genocides are inextricable from each other.
The discussion at hand is that Turkey needs to stop hiding behind their finger (to paraphrase a Greek expression). And the rest of the world needs to help them into the 21st century by officially recognizing what happened to the Armenians, Greeks and Assyrians. They can’t just delete it from their history books and their national consciousness and expect the rest of the world to pretend it never happened.