"It is widely known that Wikipedia smears and lies about many conservatives (including The Gateway Pundit) and promotes leftist dogma. [...] Only legal action will prevent these far left hacks from censoring truthful news to the public", retorted the owner of The Gateway Pundit, a far-right blog that was deprecated by the Wikipedia community as an unreliable source in 2019, one month before his message. "Wikipedia has been and always will be fake news, and they know it. They believe facts are subject to a democratic process, and the only people with a vote are the bubbled leftists who edit Wikipedia", insisted the editor-in-chief of the far-right website Breitbart News shortly after the Wikipedia community deprecated it in 2018.
Is there any merit to these allegations?
A quick search reveals that media outlets tend to respond negatively when they are deprecated, regardless of their political orientation:
All of these deprecated media outlets accuse the Wikipedia community of having a bias that is opposite to the websites' own political orientations. But there is only one English-language Wikipedia. Deprecation is like a mirror: a source's response to being deprecated reflects its own bias more than it says anything about Wikipedia itself.
Recently, The Critic, a "contrarian conservative" magazine, published an article in October titled "The left-wing bias of Wikipedia", in which two pseudonymous authors who identify as American academics criticized Wikipedia editors for deprecating more right-wing sources than left-wing sources. What does this tell us about Wikipedia and its treatment of American media?