If you identify with the Universe of the Lens, you will see it as an
attractive picture of a utopian Civilisation, and (Second Stage Lensman,
Chapter 11, "Alcon of Thrale") "it has been argued that sexual equality
is the most important criterion of that which we know as Civilisation".
But this is not sexual equality as we think of it today - it is more
like equality of opportunity, or the equality of equal treatment under
the law. The equality that states that men and women are identical in
every respect is the equality of Eddore/Boskone (Children of the Lens,
Chapter 21, "The Red Lensman on Lyrane") "Although they had long since
learned that their asexuality was practically unique, that sexual life
dominated the universe, that knowledge served only to stiffen their
determination to rule the Universe, but also to change its way of life
to conform with their own".
For most of the series there's a temptation to think of a Lensman as an
all-purpose hero and good guy, but you wouldn't necessarily want to work
for one. In the first chapter of "First Lensman" "Killer" Kinnison
justifies his ultra-competitive behaviour in a doubles tennis match
"Start giving away points in anything and you'll find out some day that
you've given away too many. I'm not having any of that kind of game -
and as long as you're playing with me you aren't either - or else." To
borrow a phrase from Ivanova of Babylon V - "Worst case of testosterone
poisoning I've ever seen". Jill Samms explains this mindset in Chapter 3
"Pure killers, all of you, each in his own way, of course. No more to be
stopped than a glacier, and twice as hard and ten times as cold". She
justifies Mentor's decision not to give her a lens here.
In the Universe of the Lens, a very few men have this mindset and are
simultaneously socially well enough adapted to be trusted with the power
of the Lens. No women, except for Clarissa MacDougall, do. Nevertheless
we are told that this is a functioning civilisation, with liberty, in
which men and women can choose to come to agreements with each other -
or not. Here, it is possible to have equality under the law without men
and women either being functionally identical, or living under a system
which penalizes any speech which denies that they are functionally
identical.
I suspect that E.E.Smith's social attitudes were influenced by the time
he live in, and what he wrote was constrained by what he could get away
with saying in his time. I think every time has its own social
attitudes, and its own constraints on what people can get away with
saying. I have tried here to analyse the Universe of the Lens on its own
terms, and not to say anything about its relationship with reality,
either the reality of E.E.Smith's time, or of our own. (But those who
think of our time as enjoying universal free speech could look at
https://en.wikipedia.org/wiki/Tim_Hunt).