Why exactly is this sentiment wrong? I've been holding it for many years now - I consider every mainstream news article individually to be bullshit until proven otherwise. I base this on my personal experience. Gell-Mann amnesia is a thing. And deleting social feeds perhaps made this more difficult for you to notice - one nice feature of some social networks (like HN or niche subreddits) is that for almost any news story, either the subject of the article, someone with first-hand knowledge, or an expert on the topic will chime in to thoroughly debunk the article. It's hard to not draw conclusions from this pattern.
EDIT: The conclusion also hold under reasoning from first principles. The basic idea behind critical reading is considering who's writing and why. The reason news media publishes anything is to make money, they don't really keep any pretense of a civil duty anymore. How do they make money? Predominantly by advertising. Which creates a strong selection pressure that favors outrage-inducing stories, and disincentivises truthful and accurate reporting.
EDIT2: I just remembered I actually made a diagram of this before:
BULLSHIT SCALE
|[------]----------[---------------]-->
| | | |
| the range people think | fake news
| news publications |
| operate in the range
| they actually
| operate in
as close to truth
as one could get
EDIT: The conclusion also hold under reasoning from first principles. The basic idea behind critical reading is considering who's writing and why. The reason news media publishes anything is to make money, they don't really keep any pretense of a civil duty anymore. How do they make money? Predominantly by advertising. Which creates a strong selection pressure that favors outrage-inducing stories, and disincentivises truthful and accurate reporting.
EDIT2: I just remembered I actually made a diagram of this before:
See [0] for more explanation.--
[0] - https://news.ycombinator.com/item?id=21627258