There is not such thing as "Black Identity Extremists".
The obviously made-up term "Black Identity Extremists" is only EVIDENCE that not only have racist Neo-Nazi and Ku Klux Klan and Racist "White Nationalists" infiltrated and taken over America's Police Departments, but are taking over the FBI [again] as well.
For a brief period in America's history, the FBI actually had CREDIBILITY over any/all other American policing/law enforcement agencies.
Evidently, that brief period has been over, as the agency, [once again], has allowed itself to be infiltrated and dominated by racists with a purely racist agenda that has absolutely nothing to do with JUSTICE, TRUTH, or THE UNITED STATES CONSTITUTION or THE UNITED STATES OF AMERICA.
The FBI colluding with, and doing the bidding of Racist Fascists, is tantamount to their being COLLABORTEURS in the FASCIST COUP D 'ETAT that is being staged against America as we speak America's racists.