despite achieving a huge victory with the passage of the 19th amendment, why did women continue to struggle for equal rights?

no equal rights amendments were passed , only voting rights

Explanation:

The 19th amendment of the United States constitution granted women with the ability to vote.  Even though this was a huge victory, inability to vote is a part of larger discrimination that women faced on day to day basis.

For example, women still had to face issue regarding discrimination on the workplace. In 1920 (the year when the 19th amendment was passed) only less than 10% of women were hired in the workplace.