The <span>purpose of comparing the circumstances of slave women and free women in this excerpt is </span>It informs free women of the suffering of slave women to embolden all women to pursue equal rights.
In a nutshell, the purpose of the excerpt is to open the eyes of free women to the hard situation of the slave women. Back then, slaves were looked down upon, especially women. The excerpt aims for free women not to look down on slaves but to understand and empathize with them. After all, everyone is human and of the same earth.