Why did some leaders of the feminist movement use the phrase "Jane Crow" to motivate people to act?

To highlight the existence of sex segregation among African-American women.

Explanation:

Some leaders of feminists movements used the phrase "Jane Crow" to highlight that sex segregation and gender politics still existed even after the abolition of the Jim Crow laws. Though Jim Crow laws were abolished, many African-American women faced another challenge of segregation based on sex and gender. Therefore, leaders of feminists movements started to use the phrase ' Jane Crows' to motivate the people to fully integrate women and women's rights.