Agree alot is tongue in cheek. "What I would do" can of course be different in a real threatening situation. Some people are keyboard warriors, some are the real deal. Even a keyboard warrior, about to have his car ripped from him, can put up an impressive fight. While a 'tough guy' can be taken by surprise and 'lose the argument'. Point is, the situations are different and its how the individual handles the situation. Anything can happen ... even to a bloke like Pete or myself.
We're not trained to handle each and every situation. If 2-3 blokes try to jack my car, I'll size them up, look for weapons and then make my own judgement if its worth it. Add something into the equation, like my 10yo lad sitting in the car, and it suddenly becomes risky for the two of us, not just myself. I'd let them take the car, and get my boy out. Each situation has so many variables. I've backed down from threatening situations because it was a bit sus (no pun intended) and I couldn't make that judgement that it was worth fighting for.
As for BITSUS, he did the best he could do in that situation. Most people couldn't have done more. Kudos for him for trying. IMO (and its my opinion only, I wouldn't really recommend it) but if more people put up a fight and made it harder for these bastard thieves, we might see less car jackings. Thieves go for easy pickings because they are weak. BITSUS made their job a little harder this time around. So I agree, if everyone was as tough as they were on their keyboards, the world might be a little more disciplined.