I don't think not being biased is possible except /maybe/ an absolute null set. Any position on a mapping qualifies as a bias technically, it just may not map

I don't think not being biased is possible except /maybe/ an absolute null set. Any position on a mapping qualifies as a bias technically, it just may not map to something considered such or sensible. What is meant most of the time is if it is contentious or controversial which is utterly orthogonal to morals and reality. If enough people dogmatically insist that using punctuation is intellectual elitism or acknowledging gravity is then it may become a "political issue". They would be objectively wrong in every stance but by definition would be right about it being political. A cat walking across a keyboard is biased compared to anyone actually writing even including the worst typists chemically impaired.