The discussion of the gender politics of a hypothetical ant species seems a little silly to me, to be honest.
I think it'd be a neat option. Is it worth it to install as a full feature, with bonuses and maluses? Some would say so, but I'm leaning towards no.
As always for neat side ideas like this, my hope is in mods. I hope to see every form of discrimination ( and the flip side, every equality) found in humanity, and several that are not, on steam or the forums before too long. I don't care what it is. Sexism, racism, classism, extreme sexual dimorphism, the works. It'd be neat and give more options and flavor for the particular race you are playing.
But in the base game? Nah.
And that's not even including the storm of manufactured outrage and hurt fee-fee's that will result in such options being standard. But then again, that would be hilarious to watch. So hey, if Paradox wants to do it, let em. I'm not a developer.