Never. Thankfully we still outnumber them by 2-to-1 at least, so all this talk of Civil War if Trump is convicted is just chest-beating bluster. There simply aren't enough of them to maintain—much less win—a Civil War, even with their undoubtedly huge…armaments. Do they really think a collection of AK-47s are any match for an aerial drone? C'mon people…
Yes, if such an altercation starts there will be casualties on both sides, but the United States will not be brought to its knee; this "war" will come to a quick end and that end won't be the one these Insurrectionists desire. Of that I am certain.