I think to focus on the angry ideologues is actually to divert the attention from the real issue, to the extent there is one; namely, that neurotypical humans, whether happy or angry, have a strong, automatic in-group bias. If you are one you can't really stop having an in-group; the best you can do is try to give out-group ideas a fair shake.

Now, this ability appears to be quite rare. I wouldn't be surprised if, worse yet, the kind of personality needed to do it made you less likely to become a journalist. In short, I doubt you could staff a newsroom full of people receptive to out-group ideas. (And if you think that you, yourself, aren't biased this way without very strong evidence for it I would suggest you take an outside view, per https://wiki.lesswrong.com/wiki/Outside_view)

Because of all of this I'd appreciate a genuine answer to my question even if I end up disagreeing with it.