However, two ideological factors caused most Southern whites, including those who were not slave-owners, to defend slavery. First, Americans are wondrous optimists, looking to the upper class and expecting to join it someday. In 1860, many subsistence farmers aspired to become large slave-owners. So poor white Southerners supported slavery then, just as many low-income people support the extension of George W. Bush's tax cuts for the wealthy now.