Calvin posted similar stuff more recently and while working as a reporter. This fails to meet the standard of behavior we expect adults who work in journalism to hold themselves to. Simply put, posting that kind of crap indicates he is not qualified to do his job. If he was working in a different industry it would be different (e.g. if your accountant is a neo-nazi it probably doesn't impact their ability to do their job) but the fact of the matter he is in a publicly facing role and in those kinds of roles being able to at appear neutral (or at least not too extreme) matters.