A fair point, but I don't think the concession is worth what you get out of it. A citizen whose sole news source is Fox is considerably less informed than a viewer who might watch exclusively CNN (or possibly even nothing at all, see [1])

Fox News really is worse, and while there may be lessons learned there which can be applied to the other outlets, such as insisting on clearer labeling of opinion content vs reporting, I think it's an all-lives-matter-style distraction to throw up our hands and say there's nothing that can be done and they're all equally bad because it's a problem inherent in the medium.

[1]: https://www.businessinsider.com/study-watching-fox-news-make...