Would have been nice if you were as skeptical of what the OP wrote. But here's the summary from TFA:
"Militant, nationalistic, white supremacist violent extremism
has increased in the United States. In fact, the number of
far-right attacks continues to outpace all other types of
terrorism and domestic violent extremism. Since 1990,
far-right extremists have committed far more ideologically motivated
homicides than far-left or radical Islamist extremists, including 227
events that took more than 520 lives.1 In this same period, far-left
extremists committed 42 ideologically motivated attacks that took
78 lives.2 A recent threat assessment by the U.S. Department of
Homeland Security concluded that domestic violent extremists are an
acute threat and highlighted a probability that COVID-19 pandemic-
related stressors, long-standing ideological grievances related to
immigration, and narratives surrounding electoral fraud will continue
to serve as a justification for violent actions."
https://web.archive.org/web/20250911165140/https://www.ojp.g...
One standard response to someone quoting a source they do not link is always to go to the source. You may well be presented with cherry picked data.