A common talking point among critics of White Nationalist Rock music address the Black origins of the genre. It's certainly not only liberals and leftists who bring this up. Indeed, there's historical precedent found in the NSDAP's banning of Entartete kunst, although prohibitions on Jazz and Swing music were considerably less enforced than physical artwork. Still, a good share of baby boomers and hippies recall their parents calling Rock "nigger music". Even so, Oi!, Punk, Hard Rock and Heavy Metal which form the basis for RAC's compositional grammar sound far from anything you could call "Black music". You certainly won't be finding too many White Power Funk Rock bands, although that doesn't mean one hasn't tried. However, declaring to be "Down with the Klan" and promoting segregation all while claiming to be "true to Hip-Hop" seems downright unconscionable, especially given Hip-Hop's definitive roots in the indelibly Black Soul and Funk alongside its long tradition of anti-racism (or anti-Whiteness, if you will).
Ideologically speaking, White Power Rap isn't too much of a stretch. Antisemitism, conspiracy theories and homophobia are all common themes for many Rappers, especially those in Hardcore Hip-Hop and Gangsta Rap, so perhaps it was only a matter of time before someone in the world saw fit to forge an "Aryan conscious" Rap that was consistent in all themes as their Black counterparts with White Nationalism replacing Black Nationalism.
Enter North Carolina's Hope, also known as White Hope. Released in 1994 on White Terror Record's imprint Rampage Records, "Hope For the Future" may be the earliest known White Power Rap album. Hope misses his mark in selling his style by describing his music as "White Funk", and sampling Bee Gees and Bow Wow Wow do him few favors. In spite of those shortcomings, the album manages to be surprisingly competent, if incredibly derivative. Those who crave Old School Hip-Hop and are willing to suspend their judgement on Hope's politics will enjoy the Boom Bap-inspired beats.
Highlights: "Flo in a Neck Mode", "Red Neck", "Just Out of Reach", "Ever Meant to Be", "The Untold Tale (The Devil Made Me Do It)" and "Kaucasian Kan Kick It"
Side note: The earliest known White Power Rap song was a goofy parody from RAC legends No Remorse titled "N.R. Rap". To add an extra layer of ham, Paul Burnley styled himself as MC Mugabe. Later on, Paul Burnley's solo project recorded "You Gotta Fight for a White Country" to the tune of Beastie Boys' hit song "(You Gotta) Fight for Your Right (To Party)". Both songs are the most offensively White attempts at Rap, but at least "You Gotta Fight..." has its own lo-fi charm. "N.R. Rap" is just next level awful.
Also, this German fellow is much less charitable than me:
http://www.ugrap.de/reviews/album-reviews/hope-hope-for-the-future/