That's Why it's Called Evolution...

Why the KKK is disappearing, apart from being blatantly anachronistic?

Because they kill their recruits during their initiation ritual.

The funniest part: She was supposed to go back to her home state to recruit more people!

I'd like to quote local Sherrif Jack Strain:

"The IQ level of this group is not impressive, to be kind, I can't imagine anyone feeling endangered or at risk by any one of these kooks."

Nice try guys, what about quitting now?