Per the article ...
Over the next 30 years, Republicans racked up spectacular gains in state legislative seats, governorships and U.S. Senate elections across the South by hammering cultural issues that the far right recognized as approving winks.
A decade after Greensboro, establishment candidates were already posing in front of rebel flags and openly courting "white heritage" groups like the United Daughters of the Confederacy.
The GOP advanced most in counties where the Klan had been active in the '60s, according to a 2014studyby political scientists from Notre Dame, Brandeis and Yale.
During the administration of President Barack Obama, the new generation of conservative politicians had the extremists' backs.
In 2009, the Department of Homeland Security issued a report forecasting a rise in racist violence.
Republicans objected so vociferously that DHS rescinded the projection and silenced its domestic terrorism unit.
Mike Pompeo, then a congressman from Kansas, said it was "dangerous" to track homegrown violence.
By that point it was hard to tell who was co-opting whom on the right.
Republicans were playing to the fringe without worrying where their most incitable elements might channel their anger.
And you know what happened next: Jonah turned the whale inside out. Donald Trump's bald invocations of racial and working-class grievances made him a hero to the ultras.
Democrats need to stand up to Republicans.
And that's done by Obama telling then Congressman Pompeo to go eff himself ...
And Democrats need to stand up and fight for issues, especially economic issues, that matter most to the working-class.
Doing these things tamps down on the right-wing fringe.