'

uh, …No, ...not nearly a portrayal of the reality.
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George Wallace and those like him weren't actual Democrats, 

they were posers who wrested control in a few states and because of their unDemocratic-like actions, 

…they were precisely who and why those faux Democrat Dixiecrats were booted from the party.
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The Dixiecrats were a short-lived breakaway faction of segregationist political party.
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They originated as a breakaway faction of the Democratic Party, 

...determined to protect what they portrayed as the southern way of life beset by an oppressive federal government, 

...and supporters assumed control of the state Democratic parties in part or in full in several Southern states. 

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The States' Rights Democratic Party opposed racial integration and wanted to retain Jim Crow laws and white supremacy in the face of possible federal intervention.
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Actual Democrats rejected the Dixiecrats.

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Republicans welcomed them with open arms, 

..where they remain to this day.