Wikipedia's policies ... are exactly spot-on and correct. If you can get your work published in respectable scientific journals – that is to say, if you can produce evidence through replicable scientific experiments, then Wikipedia will cover it appropriately.
What we won't do is pretend that the work of lunatic charlatans is the equivalent of "true scientific discourse". It isn't.
It is not recommended to reply to another editor with a link to this essay (for example [[WP:YWAB]]).
The target audience we are trying to reach is pretty much immune to "WP:..." wikilinks. They have been bombarded with them again and again and have learned to ignore them.
Instead, cut and paste the entire thing (copy from the edit page so the links don't get lost) without attribution (it is CC0, so no attribution is required) and post it to the discussion page where somebody claimed that Wikipedia Is Biased™. An alternative is to use {{subst:WP:YWAB}}, which will automatically add in the content of the essay. Be sure to add your signature and an appropriate edit summary.
Another method that sometimes works (but not as well as the cut and paste method) is to make the link look like a normal link instead of a policy shortcut (for example "Yes. We are [[WP:YWAB|biased]].")
The problem remains that the editors you want to reach have seen so many links to our policies and guidelines that they simply ignore all links, but "Yes. We are biased." is slightly less likely to be ignored than "WP:YWAB".