Answer:
If women want more rights than they already have, they should fight for more rights rather than complain about the ones they currently have.
This quote means that women should try and fight for more rights, not just complain about the small amount that they currently have.
The quote supports my sentence, because Sojourner Truth is stating that women should try and get more rights instead of just talking about how little they currently have.
Hopefully, this response helps at least a little. :)