That said, it remains true that there is no ultimately agreed upon term to refer to woman supremacists that excludes gender egalitarian classical feminism.

Do you realize that you may provided us with a viable term for such ideologues right there, however inadvertently? Why not simply refer to the man-hating victimology-mongers as female supremacists? Some people prefer the term "radical feminists" or "victim feminists," but I loathe using the word "feminist" at all in reference to them, since they hardly espouse any of the original tenets of genuine feminism, which is entirely egalitarian.

As for the dislike of the term "femi-nazi"--it doesn't upset me when I see it used despite it first being coined by conservatives, nor do I consider it particularly inaccurate when applied to female supremacists in general, because while most of them do not overtly wear swastikas and discuss white superiority, they nevertheless espouse an ideology that is similar to Nazism, only using different symbols and proclaiming the superiority of a gender rather than a race. It's not exactly the same as explicit Neo-Nazism, but it's in the same ideological family.