Larry Sanger is not the most convincing on this topic due to how he keeps using conspiracy theories as examples of things Wikipedia is biased against.
Like if the complaint is that Wikipedia is biased against pseudoscience like naturopathy, i consider that a good thing.
As such it rapidly developed into heavily biased page, as Wikipedia‘s co-founder Larry Sanger keeps pointing out.
It helps if you are proficient in multiple languages so you can at least „hop“ between the (some) bubbles. But the gatekeeping is always there.