There is no closer bond than parent to child.. today. The way we parent today is a fairly modern invention. Parents of children a thousand years ago would not recognize themselves in parents today. Parents in 5000 BC (or whenever it was that Abraham was supposed to have lived) would likely not see themselves in Abraham either. They simply didn't value their children as much as we do today. They had them and women returned to working in the fields immediately; they often died in infancy, or died while children. The Mosaic law contains the commandment for children to love their parents. Why? Because children didn't!
OK, I gotta ask, where in the world did you get the root of this idea from?