Well we're going to see if they do it now.
LGB now have all their rights? No one is suggsting taking those away.
And if you are worried about gender non conforming women, not he men, I'm still not sure what the worry is? There's no hint of legislation to restrict this.
Culturally there is a movement back to celebrating traditional roles with the trad wife stuff, but it's obviously optional.
If anything I think a positive outcome is more likley to be an accpetance of a wider varity of choices for women, Crack on with your trad wife stuff or live in a feminist commune. The state doesn't care. As long as everyone has equal rights.
If what you are seeking though is a society where trad wife types have diappeared and everyone wears unisex clothing, I think you'll be disapointed. And it sounds shit.
I think what the liberals might have to learn from all this is that tolerance goes both ways: liberals tolerate conservative views and lifetysles and vice versa but we all have rights in law.
I may be totally misunderstinding what your worry is as you don't actually say beyond the vague worry, but like I said let's get the rights stuff done before we argue culture anyeway.
I'm OK with disagreeing on culture, I'm not OK with women's rights being unedrmined.