Translation:Women need men like fish need bicycles.
Notwithstanding the fact that it's kind of absurd to call this a "SJW" sentence (considering it caught on in the 1970s, long before modern Internet culture), if you really have that much of a problem with it, replace the nouns with whatever you want, and voilà! You have learned Grammar.
This is what some of us have to do for every sentence that starts or ends with "my wife" -- which is a LOT more frequent, on Duo and other language courses always -- and it works out just fine.
Just wanted to say that I like those quirky sentences ... but jeez - calm down people!
OMG Duolingo mentions gay marriage or now and then a light-hearted sentence like this one! And on the other side there are sentences like "the girl likes pink" -
Get the pitchforks! Or wait - maybe just breeeeze?
Even if I wouldn't like some of those sentences - still so much better than all the other boring language courses. So I guess I just wanted to say that I do not feel preached to. I'm sure if one would want to one could find almost in every sentence "a preachy meaning" . Kind of says more about those people who react to those sentences than the sentence itself...
I just love how people first post something that clearly violates community guidelines and then try to tie it to "freedom of speech" and "SJW mods". Freedom of speech does not and has never meant that you can say whatever, whenever, wherever. And by no means it overrides local standards. Leaving aggressive comments that are bound to start a flame war and then acting all surpised when mods do their actual moderating job - oh my gosh, democracy is definitely in danger!
Some people just need to chill out. I'm far from being a feminist myself, yet the fact that this sentence is in the course doesn't bother me in the least. I'm not in favor of homosexual marriage, yet the sentences that occasionally pop up to that effect bother me none. The course creators can set up whatever sentences they want, it's their privilege. I'm here to learn, I'm very thankful this free opportunity exists, and there's an end to it.
I somehow feel the need to point out that I am a feminist who is very much in favour of marriage equality since both of these movements are about, you know, equality and I haven't heard a convincing argument against that yet. Women and queer people exist and everyone should have the same rights and opportunities. I am thankful to be learning in a course made by people who seem to share those ideas.