Here's how this works.
First there's some sort of ordinal system for personal attributes. Gender, race, SES, political views. In this system female > male, black > white, gay > het, and of course left > right. Same thing with the topic at hand, namely the view most towards the left/right side of history, wins.
So then you compare the speaker's attributes to the group the speaker is attacking. If the speaker's attributes are greater than those being attacked, pass. If less than, price to pay. If equal, the subject content determines.
So for a recent case of subject content determining we have D&G vs. Elton John.
As to the two females under discussion their attributes clearly are greater than whom they are attacking so pass.