Amateur hat on.
The KKK may be symbolic or archetypal to them of the the dark forces in mankind, which they see.. including of themselves. And within those dark forces, it can manifest/operate as an ideology, and then further manifest itself in a group of individuals where those thoughts resonate with each other, who then may cause great harm to a few or many peoples.
>> If its not racial why compare it with the KKK?
That sounds like a reasonable explanation. Thanks.