White Southerners didnt own enslaved people but many clearly still supported the war is an important part of understanding the legacy of White supremacist ideas in America today. But this is definitely only a topic right now, not a thesis, your intro poses more questions than it answers. Im also not sure if you can answer this with available sources. You propose a sort of what if? question on page 1, imagining what would have happened if non-slaveholding White Southerners had allied along class lines with enslaved people and Free black people. But you cant answer a what if? question with historical sources.
