How is it different? The Nazi party and the KKK came to power during their respective areas, Germany and the South's, post-war, WWI and American Civil War, period of significant economic debt and decline, changing economic infrastructure and racial and class tension. Both groups utilized scapegoating to focus attention on minority parties, who couldn't fight back, to divert attention from the serious but harder to solve issues.

Maybe you need some history lessons? They weren't gassing Jewish people in the first year. It was a steady increase of intimidation, harassment and removal of legal rights and protections.