The most appropriate conclusion to draw by connecting Hillquit’s quotation with the historical context of the time is: The Socialist Party was sympathetic to the rights of women.
Hillquit's words reflect an understanding of how individual workers, particularly women in this context, were often seen as valuable by employers as long as they remained individuals rather than organized as a group. This suggests that the Socialist Party recognized the importance of collective action and solidarity among workers, including women, and advocated for their rights against the interests of factory owners.