I'm going to agree with moon_very_thin - MRA has a completely different meaning in our culture, so even though I see the context has nothing to do with our society, I think it's better to use another term. (Perhaps that's why you're asking for another term in the first place?)
Other possibilities for this context that to my knowledge don't have nasty our-society meanings: male liberation movement/activists, male equality movement, male egalitarians, the gender equality movement... or perhaps give one of the groups a proper name.
I thought about the term masculinism, which could conceivably have developed in the discussed society to have the analogous meaning to feminism in our own, but because our culture's attitudes towards the sexes are reflected in the English language, the term doesn't _feel_ all that parallel to me, even in the context of what you're writing. Maybe "equigenderism" would be less odd-feeling.
no subject
Other possibilities for this context that to my knowledge don't have nasty our-society meanings: male liberation movement/activists, male equality movement, male egalitarians, the gender equality movement... or perhaps give one of the groups a proper name.
I thought about the term masculinism, which could conceivably have developed in the discussed society to have the analogous meaning to feminism in our own, but because our culture's attitudes towards the sexes are reflected in the English language, the term doesn't _feel_ all that parallel to me, even in the context of what you're writing. Maybe "equigenderism" would be less odd-feeling.