i'm not sure that a video camera offers the same line of defense as a firearm when you feel your life is in danger. after all, the incident was a straight up gun standoff with weapons on both sides.

[citation required]

I’ve seen no evidence of guns from the protestors, just the racist Karen and Ken.

The incident involved the armed woman walking towards the crowd while pointing her handgun at them. It's clearer in some recordings made from a different angle, e.g.:

https://twitter.com/averyrisch/status/1277398535973949440

So no, not a "standoff". Such behavior is certainly sufficient grounds to dismiss any claims of self-defense - lethal force is justified in self-defense when a reasonable person would perceive a threat of imminent death or significant bodily harm; but if you believe something to be a source of such a grave threat, why would you run at it?

If they feared for their life they wouldn't have acted so relaxed and would have been inside the house, not swinging around outside.