An egg is not a life. An egg has the potential TO BE a life as does the chicken egg you fried-scrambled—poached—boiled and drop on the floor most mornings (before the salmonella recall) could have been a chicken, the veal chop you had could have been a lamb, the hamburger you had was a living breathing—methane polluting cow with calves. 

Had God been created in the image of a chicken, lamb, cow would humans be feed?

An embryo may contain the POTENTIAL for life but cannot live—even with great medical intervention outside a woman’s womb. Do deceased humans deserve to live at the expense of a potential life? It may be all about karma or it may be all about life. No matter, however an egg is a potential for life and once we accepted freezing and storing embryos we slid down the slippery slope. Now all these dozen eggs are spending existence in a freezer waiting for a womb—seems like rather than trash the potential it is better to save a living—breathing—human. The rest is politics.