It's not just white supremacists that wrap themselves in Roman Imperial symbolism. The entire US imperialist state does it too.
https://en.wikipedia.org/wiki/Fasces#United_States
Two famous statues of Abraham Lincoln feature fasces (which is a shame).
The chamber of the House of Representatives features two fasces.
Look at the National Guard Bureau insignia https://en.wikipedia.org/wiki/Fasces#/media/File:National_Guard_Bureau_(insignia).svg
And then you have all the eagle symbolism . . .