A Klan member is not stamped from a standard cookie cutter. They come from all walks of life and various education levels and environmental situations which have led to their decision to join the Klan. The one common denominator that all share is lack of exposure to others who may not look like them or believe as they do.
Over the past 30 years, I have come to know hundreds of white supremacists, from KKK members, neo-Nazis and white nationalists to those who call themselves alt-right. Some were good people with wrong beliefs, and others were bad people hellbent on violence and the destruction of those who were non-Aryan.
I have a former Baltimore City police officer's uniform and his robe and hood. He was the grand dragon, which means state leader. His day job, what paid his bills, he was a Baltimore City police officer, not an undercover officer in the Klan gathering intelligence, but a bona fide Klansmen on the Baltimore City police force.
There are plenty of people, including good friends of mine, who are not racist, and who voted for Trump. A lot of people wanted a change from what they were accustom to for the last decades... they wanted a change of the status quo, a changing of the guard. And they were willing to overlook his misogyny, his racist or bigoted comments.