Imagine if the commentators of a game were narrating it in a biased way. They only see the flaws of one side and exaggerate it, and accuse the referee of being biased.
That is what is happening in American media. What you are hearing is half the story.
There are those who make such media possible, much like how some people walk in front of a train and pretend like they are riding it.
But they are not making the train move.