Phaedra, I commented about the heels/skirt/makeup combination being (somewhat) fetishised in our society but I really wasn't trying to lay down laws! I'm all up for extensive discussions of fashion and of fashion with relevance to feminism, but I don't consider it an essential detail in an imagined genderless society - the main point would be that we wouldn't be expected to advertise, suppress, or in any other way tailor our appearance according to social expectations based on gender.
Which was a very long way of saying something short 
Damsili - You've covered an enormous range of issues in two posts there.
There's always going to be some sort of issue isn't there? History has not indicated that the human race is very good at tolerating difference
- Massive question there involving all the social sciences, behavioural science and politics.
even in a completely genderless society, sex would still be a difference.
- Yes, but it wouldn't have to be a constraint. The whole idea is that we get to be PEOPLE, rather than 'feminine', 'masculine', etc, as defined by others.
I have been in sub-cultures that have been relatively blind towards colour
- Eh? We're on to multiculturalism now?!
... and that's given me hope that diversity can be tolerated and respected.
- Intersectional issues will be jolly interesting to discuss in the context of our genderless society. But we haven't even got that out of its packet yet.
Also, there's the issue of sexual attraction.
- Yes. And? Do you find you can't be sexually attracted to someone unless their clothing & behaviour clearly mark their gender? I'd think that quite unusual.
Is it possible to say that gender doesn't exist in the animal kingdom?
- I'm not an animal behaviourist. I'd guess the answer would be "It does, but not as much", since gender is socially constructed and animals have social rules but are less self-conscious than humans (and other primates.)
Is the animal kingdom any sort of measure by which look at ourselves?
- Another enormous question that has its own studies & experts. I am not an animal feminist.
I'm just thinking that there are usually still issues of hierarchy based on sexuality in social animals.
- What? Do you mean lesbian wolves have a special place in the wolf pack? Tell me more!
Or do we have higher hopes for future humankind?!
- I bloody well do, that's why I'm a feminist. Can't answer for "us", as I don't know who "we" refers to in this context.