The morality argument here, is in fact, another dimension of the war between religion and evolution.
It will never be resolved, except after great extremes of time and knowledge accumulation.
I am not sure what this has to do with IVF, but perhaps you'll explain further?
"The whole question becomes whether the State has any right to deny an infertile couple the chance to have their own progeny."
No, that's not the whole question. In fact, the way you state it is tendentious, as if we shared an underlying assumption that infertile people possess a "right" to create laboratory progeny. It's like the homosexual activists saying that the state of Tennessee denies the "right" to gay marriage, or the socialists claiming the state is denying the "human right" of universal health insurance.
First you have to prove that such a right exists.
I say it does not; and that the state has a legitimate interest in preserving human children's status as persons rather than products or property. This, you will discover, is the point of the 1992 Tennessee Frozen Human Embryo trial. Which, by the way, settled for the concept that conceived children are property. This is a position truly obnoxious to a genuine human right.