To emphasize, all human productions are biased, that's human nature, and news media are not exempt, despite many outlets making serious attempts to produce unbiased news.

Part of the job of being a consumer of media is understanding the bias of what we're consuming, determining whether it skews the news, and possibly counter-balancing by consuming other media with different bias. And yes, it's lots of work and most people aren't willing to spend the time doing that.