If the first woman God ever made was strong enough to turn the world upside down all alone, these women together ought to be able to turn it back , and get it right side up again! And now they is asking to do it, the men better let them.
Here Sojourner Truth is specifying that a woman's identity as a woman is not just a source of persecution but a source of strength. She is saying that wrongs done to women for being women can be righted through their identity as women.