“ He was running straight at him”
Wrong !
“when there was plenty of room to go to the side. “
Wrong !
“Then he reverses course when Travis pulls out the gun.”
Wrong !
You don't know what the hell you're talking about. The reverses-course part is not the last time that's on video but but the previous time (according to testimony). As for running straight at him and plenty of room to go to the side, that can be seen on the video. Look at the video -- VIEWER WARNING: Uncut video of confrontation, shooting of Ahmaud Arbery (News4JAX).
I just heard Giuliani on the radio saying something to the effect that they've been after this guy all this time, and then when there's no video, they claim he charged them. He either doesn't know there's video that shows what happened, or hasn't paid enough attention to it to see Arbery, on the right side of the truck with nobody in front of him, turn sharply to his left and charge at Travis, who had remained on the left side of the truck.