I disagree that the standard use of established feminist terminology is "outside the mainstream". Anyway, the point is that they are obviously not gender-neutral terms. It is a blatant double standard to suppose that the term "chairman" disparages women by its construction (despite no such original intent), but that the term "patriarchy" doesn't disparage men by its construction (when it was specifically constructed to describe a construct, by academics who had free choice).
> e.g. the King James Bible has quite a bit
No, that's precisely "an indefinite, hypothetical or otherwise vaguely described person (e.g. the perpetrator of a crime before being identified)". Other examples I could find myself were not any more compelling.
> However, I have heard people say that they thought that it wasn't societally permissible for them to do something based on the way the nouns and pronouns used in sentences
Within the last quarter-century or so? Despite the readily available evidence of other people of the same gender doing that thing?