Remember this, from a few days ago?
News just in from Jezebel: I wasn’t far off the mark.
My own votes:
#1 FEMINIST. [...]
• EQUALIST–maybe also EGALIST too? fits in a lot of other languages, bonus
• DECENCY, along with the lovely DECENTIST
• the good old-fashioned plain-jane HUMANIST
• similarly old-fashioned: PARITY
Images at top: Cat and Girl (2005)