Nope.
Domestic violent extremists is a phrase that could/should include groups from either side.
Your "mob" violence term is obliviously too vague for them
The next two drafts refer to “Domestic Violent Extremists” –– rather than “white supremacist extremists” –– as “the most persistent and lethal threat.” All three drafts contain the following sentence further down in the same section: “Among DVEs [Domestic Violent Extremists], we judge that white supremacist extremists (WSEs) will remain the most persistent and lethal threat in the Homeland through 2021.”
Black gang members have been around for many years and they don't
generally involve themselves with political protests. The violence
associated with them does not target the general public.
It's bad for business