No, they are not. An intelligent person makes a number of assessments when determining the veracity of source. (Sorry for the big word, there, just google it). Is this a news article or an opinion piece? Are factual statements cross referenced? Does the source have a history of bias? Do they adhere to journalistic ethics? All of those things are completely relevant. You blow past them. That's your problem. Sources like Gateway Pundit, Breitbart, OAN, etc. are the boys who cried wolf. Whether what they report is factual or not is irrelevant, they have established they are not reputable sources.
I listen to experts because I am not an expert on all topics. Neither is a short order fry cook. Or an anonymous guy on the internet, or your Uncle on Facebook. Most of this idiotic anti vax covid nonsense can be debunked in fifteen seconds. The fact that you don't consider the source speaks volumes about your intelligence level.