[BigJono]

> if they present an equally biased perspective

Where has it been said that they're both equally biased?

I don't know anything about American news, this is all from an Australian perspective, but if a right-wing paper runs fairly standard stories and occasionally has an opinion piece on stricter border controls; and a left-wing paper runs page after page after page of manipulative appeals to emotion full of terrible anecdotal "evidence", nobody would suggest that they were equally biased. The same works in reverse. You don't get to declare a Facist state and openly call for the execution of all Muslims because your rival paper ran an investigative story into refugee camp abuse and then go on to claim an equal bias.