I cannot ever before remember crying at a Vi Hart video. The problem, gentlemen is us. Pogo is right.
I look at my boys and wonder if, once they are out of our supervision, will they make the same stupid mistakes I made, be the same problem I was? I was commiserating last night with another parent whose child was also misbehaving and she noted that if she had done or said any of the things her child was doing and saying she would've been beaten soundly for it. Me, too. But she and her husband - like me and Pygment - have vowed to raise our children differently. She has five boys, we have two. If we've done something right, there might be seven fewer problems, seven more allies. And if we've done something REALLY right then we might just produce seven examples who have the position and possibility to influence their peers.
And maybe if enough of us do that enough times there will be a future history class that teaches videos like this one the way we teach at photos of last century's cholera, typhus, or influenza epidemics and both sympathize and be grateful the world is no longer like that.