The "personhood" amendements referenda that, for a few years now, have been popping up in different states are a despicable example of the way in which insane religious beliefs are morphed into a political tactic to help a party (the Republican Party, of course) and are a step toward a theocratic state, the disclaimers of such referenda's proponents notwithstanding.
Theocracy is not simply the imposition of religious rule over secular rule. That, of course, would be bad enough in a modern, civilized society. The real danger of theocracy is that it seeks to establish the rule of indefensible myths and unfounded belief over reason and science. And because modern theocrats have become more despicable and astute in their tactics, they have understood that it is important to camouflage their evil intents as science. Hence the unscientific drivel that is intelligent design is presented as a viable alternative to the scientific theory of evolution. Hence those who oppose the curbing of human activities that are taken as a very likely factor in the increase of global warming (a likelihood expressed in scientific terms to a 90% degree of certainty) do so with the pretext of conducting better science.
The theocrats' tactics are typified in these "personhood" amendments, which when you think about it have little meaning when the Party that supports them also support the ridiculous concept of "corporate personhood". Take for example the despicable referendum on the ballot in Mississippi. While the text of the amendment itself does not specifically mention science, the website set up by the amendment's supporters poses as scientifically sound. Falsehoods and misleading facts are presented in such a way that would have the ignorant believe that science backs the fantastic notion that a fertilized egg should be accorded the same rights that humans gain after birth. Keep in mind that the fertility specialists community view this as a laughable notion, since most fertilized eggs do not implant into the uterus or develop further.
Note that abortion would not be the only casualty of the passage of Amendment 26 in Mississippi; Many forms of contraception would be banned as well (for example the "day after" pill, under the unscientific pretense that every fertilized egg represents the first step toward human life. That would be true, if only it weren't scientifically false.
I invite to go over at the Daily Kos and read Kaili Joy Gray's excellent post, The Personhood Amendment: Rights for eggs but not for women for an expanded discussion of why this theocratic fantasy only shows that a majority can be of the Right and often be wrong, particularly if they are ignorant and/or dupes, the way most religiously-motivated voters are about scientific matters.