Indviduals with proper self-defense training can put down attackers no matter the size difference, with little to no damage done to the victim. Ask any defensive trainer, or a student of such a trainer, and you'll get the proof you regularly state on this page that this page lacks.So if one can't do it outside of a nice, safe dojo w/ a cooperating 'attacker', then I guess you weren't doing it 'properly'. It's a little different when the teacher hands you his/her arm and tells you to throw them in comparison to a gang banger who's actively trying to rape/rob/kill you. Oh sure, some might be able to manage it but I'm not willing to bet my (or anyone's) life on it.
But the Bradys are. Because they know better than you.