why would women want to use the declaration of independence as a source of their own declaration?

Answer 1

Why not?

The Declaration of Independence states that all "men" are created equal. Women believe that that should read all "people" are created equal. Yet throughout history, women have not been treated equally. Women couldn't even vote until 1919. Reread it carefully to find other reasons that women could reword this document and use it to declare their own independence.

http://www.earlyamerica.com/earlyamerica/freedom/doi/text.html