Unfortunatelly those who control the medias on the modern times use it as bargaining chip, they will spread lies if they are paid for or if it attends their own interests. Even alternative medias are sometimes very shady and try to manipulate readers wrongly, so the solution isn't only to suspect mainstream media, but to analyze very well everything you are reading, looking the details and searching for more sources to see if that is legit or not.
However, I think we shouldn't avoid reading anything, there isn't problem in reading, we just need to be aware that what we read isn't always true.
yes you are right, it's what I was trying to explain, to just be aware that 99% of the news has always an objective, but, yes, definitively, we must not avoid reading, we only have to understand if the news are legit or not