But none of the people who allegedly want to stop this have picked up this idea.

I'm not sure you understood the context of the paragraph. It's part of her explanation of what men can do to avoid being mass executed for being useless to women.

Claiming the privileges of an oppressive class is helpful to the individual to some extent. There's a reason why Indians lighten their skin to appear as a higher caste.

But that doesn't mean it's something society should encourage.