"39% of Republicans, agreed that "if elected leaders will not protect America, the people must do it themselves, even if it requires violent actions.""
"two out of three Republicans saying President Biden was not legitimately elected"
https://www.splcenter.org/news/2022/06/01/poll-finds-support...
"70% of Republicans believe in the great replacement theory"
https://www.usnews.com/news/politics/articles/2022-02-24/a-q...
"A Quarter of Republicans Believe Central Views of QAnon Conspiracy Movement"
Both sides have a substantial portion that believes that there could be a need for violence. Unfortunately the Republican side believes this because they think liberals are replacing them with brown people, qanon, and election lies.
Meanwhile liberals like myself believe it because we have relatives who are talking about cleaning their guns to make ready to kill Democrats. Personally I have directly followed alt-right communication on publicly available social media platforms including gab and parler and the videos they share. It's not really a secret that the crazies want to whack us.