Any adult can inflict any torture on a small child. But they forget- that kid will grow up. If you have lost control of a tiny boy, get some frigging help.
This soap in the mouth idea seems appalling. Just because your parents tried that on you does not make it alright. Thank God my parents never even thought of that one.
My kid behaved in public and mostly private because I gave him rules. It required no physical violence ever, and he is a decent hard working, tax paying man who STILL has good manners.
That woman in the video is a vicious bitch who deserves jail time. She is sadistic and just loves abusing small children. I could cheerfully run her over and/or rip her head off.