embryonic stem cells are cells that can become viable as a fetus. But these cells can become a liver just as easily or perhaps, with medical science, to repair the spinal chord injury.
These cells number in the hundreds of thousands and are destined to be DESTROYED. They are not ever going to be kept. Many couples have volunteered to have their embryonic stem cells donated for research. They do not wish to have their cells implanted in an infertile female. It is their cells and their choice.
I believe in the sanctity of life, the betterment of all life. The gift of donating an organ upon death is very much the same thing. Sometimes parents of a teen in a terrible auto accident may choose to donate organs, a heart so that someone can live.
It is the same with embryonic stem cells. Those cells have potential for life. There, my own 2 cents!