Find and watch the livestreams from that day (conveniently made by the right-wingers and that are now available permanently online and helpful to the FBI most definitely).
Most of those Capitol morons are not going to fight in any "civil war". They'll cut and run at the first inkling of any real hostilities. There were some bad dudes there that day, from what I saw they were out front throwing shit at the cops under the balcony and they were the ones that dragged the two cops down (and killed them, if they were the same ones). These are the crew listed separately on the FBI site for violence against the Capitol police. That was some truly nasty shit.
But the inside Capitol crew? What a bunch of moronic clowns (other than a few like the two ziptie guys, which were still morons, just more serious ones.) Not saying they didn't do damage or wouldn't have injured/harrassed/taken hostage the congress critters if they'd been there, and any mob is dangerous. But those nitwits not only filmed themselves (mostly maskless) but at least a couple mentioned names. They reminded me of drunk football fans, talking tough but if real shit broke out they'd run asap. Just watch Insurrection Barbie's video for a good example. If those are the bad guys in a civil war, not really a concern.
My only real concern is supremacists and Trump worshippers in the armed forces, not these yeehawdists.