The word "probably" should be noted.The Conservative wrote:What's the saying? It's too good to be true, it probably is?
The Holocaust Denial comparison is a little strong as although denying it is almost like saying the Moon is made of cheese, the Solid South is more nebulous, much less concrete.
The attacks on the Solid South idea is linked to the efforts to deny the South's efforts, and to a lesser degree the nation's, to create, and maintain, an apartheid system. To deny the effectiveness of using racism as a means of winning elections by cultivating the white vote.
The Southern States' governments used the Democratic Party to do, and it is no accident, not a coincidence that that Party was a racist bastion, with few black members, while the Republican Party, although still very, very racist, was a bastion of the black voter. When the Democratic Party under LBJ finally cracked the apartheid system, albeit incompletely, and established itself as a supporter of civil rights, something the Republican Party failed to do, the diehard racist vote moved to the Republicans, while the black vote moved to the Democrats.
One thing followed the other, and it was not a coincidence.