The FBI has 'infiltrated' the KKK
What does that even mean?
Cigars passed around when a baby boy is born? Or are those cigarettes with filters? I suppose they inhale when they smoke filtered cigarettes. If that is what it means to be 'infiltrated.'
Many cops of various jurisdictions are members of the KKK.
The fact that the Klan 'exists' is not something the FBI or any other law enforcement agencies can do anything about. If law enforcement officers are members of it, then they are members of it, and I would take that at face value.
Particularly if any FBI agents are Klansmen, and the Klan is in fact a hate group, then that is more likely than not for the purpose of using their authority to commit hate crimes “under color of law” as that phrase has been much abused in court.
I would suggest Klan membership is a family thing of undeniable ancestry with some Scottish connections in America, very often exhibited by the kilt-and-bagpipes funerals for fallen police officers.
Histories of black people wearing chains and working as slaves in America are debatable. Check eBay listings for “Cuban link chains” or “curb chains” and one can instantly recognize the weight of them and the sort of fearsome gangsters who typically wear them. The Swedes view “slavery” as merely hard work, and the “abolition” of it as merely a workplace prohibition on heavy and excessive jewelry.
White leaders were in a precarious position with respect to labor representation before the Civil War if they owned too many slaves with gold chains on their necks. Obviously there was an Underground Railroad of sorts between French-speaking Louisiana and Quebec, but that was merely the accepted corporate option to quietly leave a company farm town and go to work somewhere else.