Sure, it is the first sentence in the "Takeaways" section, at the very top of the article.
"The rate of murders in the US has gone up at an alarming rate. But, despite a media narrative to the contrary, this is a problem that afflicts Republican-run cities and states as much or more than the Democratic bastions."
The comment you are referring to ("No person in their right mind would want to go wandering around the south side of Chicago. That is not a falsehood.") is evidence that the "media narrative" mentioned and referenced in the article has indeed taken hold. Chicago was even one of the examples the article used. Any form of research would quickly identify that the entire South Side of Chicago is not a wasteland where nobody willingly walks around (let alone live). That the commenter felt it was so obviously true speaks to the level of validation.