Lots of people who aren't feminists don't immediately understand what you say when you call gender a social construct.
But it doesn't take more than one post to explain it, quite easily.
Because most women are a victim of gender. They know it, they just don't know what it's called.
All the threads in AIBU about my husband won't do this or he demands sex, or I got passed over for promotion, or I was sexually harassed.
They're living it, they understand they are living it, they just haven't yet made the dots connect.
Eg your husband demands sex, because women's gender role is to provide it and men's gender role is to feel entitled to it.
And many, many people both men and women, think that is just the way it is. Except it's largely women who kick against it, without having the tools, history, or the language to effectively oppose it.
I absolutely see the argument that saying gender is a social construct sometimes falls on stony ground.
But I don't see any reason to not continue to say it, and explain why it is.
Because most women in the space of one explanatory paragraph, will recognise it instantly. There is no complicated theory to understand.
They already understand it, they just don't know what it's called.
It also has the added benefit of women often experiencing a blinding flash of light and becoming an instant feminist.