Because the mainstream media didn't cover these events fully, right-wing extremist influencers were able to control much of the online narrative. https://www.yahoo.com/video/rioters-set-fire-federal-courthouse-162333860.html
That's some imaginative excuse right there 😂😂
There were many agent provocateurs throughout the summer of 2020. Umbrella man, the boogaloo boys shooting into the Minneapolis police station with an AK-47 and setting it on fire, setting police cars ablaze in Kansas, one of them also killed a fed & wounded another in California, an assistant police chief getting the crowds riled up...I can go on. Though, here's a short list which include others: https://www.counterpunch.org/2020/10/08/protests-provocateurs-infiltrators-are-disrupting-blm-protests/
Roeper hadn't attended the Million Maga March in DC on November 15, 2020 but other NC Oath Keepers did and based on what they saw there, the NC Oath Keepers decided to splinter off from the national OK group.
My aside: This splintering happened quite bit from 2014 on. The group was too big and unruly, and the leader/founder was a narcissistic blowhard who loved giving out orders from the comfort of his couch/bunker/computer screen while constantly hitting up OK member for donations.