Don't be so lazy.
"Klan leaders hope to have all major candidates competing to win the movement's endorsement. ... The Klan's leadership wanted to keep their options open and repeatedly announced that the movement was not aligned with any political party. This non-alliance strategy was also valuable as a recruiting tool. The Klan drew its members from Democratic as well as Republican voters. If the movement had aligned itself with a single political party, it would have substantially narrowed its pool of potential recruits.
[112]Sociologist
Rory McVeigh has explained the Klan's strategy in appealing to members of both parties:
[113]
"
https://en.m.wikipedia.org/wiki/Ku_Klux_Klan
If anything, the fact that the south went Republican following Johnson passing the Civil Rights Act of 67 says volumes about the Republican party at the time.