Wrong. I've posted it before but just to provide a source:
FBI and DHS Warned of Growing Threat From White Supremacists Months Ago
"The report, dated May 10, says the FBI and DHS believe that members of the white supremacist movement “likely will continue to pose a threat of lethal violence over the next year.”
The FBI, on the other hand, has already concluded that white supremacists, including neo-Nazi supporters and members of the Ku Klux Klan, are in fact responsible for the lion’s share of violent attacks among domestic extremist groups. White supremacists “were responsible for 49 homicides in 26 attacks from 2000 to 2016 … more than any other domestic extremist movement,” reads the joint intelligence bulletin.
The report, titled “White Supremacist Extremism Poses Persistent Threat of Lethal Violence,” was prepared by the FBI and DHS.
The bulletin’s numbers appear to correspond with outside estimates. An independent database compiled by the Investigative Fund at the Nation Institute
found that between 2008 and 2016, far-right plots and attacks outnumbered Islamist incidents by almost 2 to 1.
The cases cited in the intelligence report include an 18-year-old Chinese student in Nashville, Indiana, who was attacked by a white supremacist with a hatchet; the murder of an African-American man in Fort Wayne, Indiana; and the stabbing of Klansman in East Yanceyville, North Carolina, by other KKK members, who believed the victim was Jewish and secretly working for law enforcement."
Incidentally, before some pedantic Trump supporter shows up, where it says, more than any other domestic extremist movement, it's more attacks in total, not a greater total number of people.