"Watching that made me really angry! I wanted to reach through the screen, grab the woman by the face and yank her out of that car."
"stupid, arrogant bitch"
We don't actually know who was in the wrong here. The video doesn't go back to the origins of the encounter and eyewitness accounts are notoriously dubious. Witnesses are also prone to bias so if they have similar attitudes to some of the people on this thread, they're going to blame her anyway.
I suggest, Minecraft that you have a long think about why you're aiming your violent reaction at her but not at him. It seems to me that the elderly man is not transgressing any social expectations. Indeed, he is as Jassy has said, being infantilised. He's doing the "helpless poor old man" thing that on the whole society finds acceptable. By apparently being petrified and helpless he's eliciting sympathy despite the fact that he can't actually drive. He's being asked to reverse on a normal road. He's not expected to reverse uphill on ice with vertiginous cliffs either side. The woman on the other hand is doing several things women are not expected to do - standing up for herself, driving a flash car, refusing to give way to men shouting at her.
I find it depressing that so much violence and misogynist language is being directed at her. As a society we really do seem to think that violence against women is OK and is indeed their fault, particularly if they stop acting in a way that people think is "feminine". If you disagree with her and think she was in the wrong, fine, but by threatening violence you are being at least as bad, if not worse.
As for what I would have done, well I cycle. So long as there's a gap big enough to lift my bike through, I'm out the other side and gone, leaving drivers to sort out whatever mess it is they've got themselves into.