You have not presented any evidence that any John Brown Gun Club chapters have assaulted or killed anybody.
The Gun Club arms itself to defend against far-right violence and often appears as a security force at protests to protect against expected far-right violence.
To date, Gun Club members have reportedly not engaged anyone with their weapons during one of these protests.
Perhaps. Let's look at Andy Ngo's invitation in context. Republican lawmakers asked him to testify during hearings about the January 6 insurrection attempt. His testimony mainly aimed to downplay the feeble insurrection attempt, and shift focus to riots. Of course, he fails to mention that the riots were often directly caused by police action.
Well right, because Jan 6th was a peaceful protest until cops started murdering protesters. The only deaths were of protesters, and the only murderers were the cops. Nobody was arrested for bringing a gun/weapon into the capital, and the guards unlocked the doors to let protesters in. I mean the fact republicans weren't allowed to appoint anyone to the Jan 6th committee should tell you everything you need to know
The Gun Club arms itself to defend against far-right violence and often appears as a security force at protests to protect against expected far-right violence.
To date, Gun Club members have reportedly not engaged anyone with their weapons during one of these protests.
https://www.counterextremism.com/supremacy/john-brown-gun-cl...
Being invited by Republicans to speak before Congress is just more evidence that Andy Ngo is far right, from my perspective.