@ Philospher
“But why would we argue what ndk means for all women halachically or even only as a Chazal’s description of us if we are talking about an agadata that never has a practical application? ”
One area where it has Halachic ramifications is in Hilchot Talmud Torah. The Mishna and Gemara in Soteh and the Machlokes Rashi and Rambam as to how to understand NDK has had (and continuous to have) a significant impact on how Poskim in various communities advocate designing a curriculem for female students.
“As far as I know, agadatas never dictate halacha or define a reality.”
Whether or not Agadata dictates Halacha they are part of our Heilig Torah and we have an obligation to understand them in line with the intent of the Ba’alei Mesorah. Something being an Agadeta is not a license to disregard it or to interpet it as one sees fit.
Also, we argue because when when a superficial reading of Chazal yields a misogynistic or feminist point of view it is our duty to set the record straight. We have this duty to uphold the honor of the Torah and to uphold the dignity of our wives and daughters.