1. The left has a growing (in power or quantity, I can't tell which) anti-science/anti-objectivity fringe and it includes university faculty. We have university professors condemning math, reason, and objectivity as inherently racist/sexist. Social scientist professors describe their field as one of activism, not truth seeking. These are among the more egregious absurdities that come out of some university departments, but there is a long tail of lesser absurdities.
2. Journalists haven't been "committed to objectivity, but sometimes erring" for the last twenty years or more. They consistently report the news through their political lens (consciously or unconsciously). We assume that tech is susceptible to horrible gender/racial biases for lacking even distribution of races/genders, but somehow newsrooms and sociology departments are immune to this while being somewhere north of 90:10 liberal:conservative (especially when we know that political bias is much stronger than racial or gender bias). Granted, the New York Times is far better than Breitbart, but it's hardly a paragon of objectivity.
3. These biases are certainly responsible for creating or fostering distrust for these institutions. Why should anyone believe anything about social justice when it is distorted once by a 90:10 sociology department and then again by a 90:10 newsroom? How can we hope to fix our epistemic rift without making these institutions trustworthy to the objective person?