Jesus you are denser than a box of rocks. Do you trust every person you know? Of course not.
When you can verify the information behind a report by researching multiple sources then you can accept or reject the truthfulness of it. So if a particular media outlet consistently reports stories than can be verified as false you come to the conclusion that they are untrustworthy.
You revert automatically to a black and white stance so I guess I just wasted my time writing this, lol
It's almost impossible to verify who is right, especially in today's world.
The validity of any argument, ideal, or belief, will be backed up by repeated verification and the evidence will either support the claim or it won't--you know, the whole Alternative vs. Null Hypothesis.
Although not a perfect process, the only thing I read are peer-reviewed journal articles. Peer-reviewed has its own internal biases and its NOT a perfect process, but it's the best thing we have to help weed out bad ideas. I almost never read anything on the internet or from the media. And, when I do read peer-reviewed journal articles, I read both sides of an argument. When writing my thesis, I remember the results did not support my hypothesis and I obviously honestly stated my results. At least with the peer-reviewed process, there is some process. With the internet and media, its a total shit show.