One way or another, you've heard of "The Handmaid's Tale." For decades, the title has been feminist shorthand for the kind of future that's likely for women if Christian fundamentalists have their way.
Far more than abortion is at stake: There are measures that establish legal principles that will be and, indeed, already have been used to justify arrests of and forced medical interventions on pregnant women.
"Personhood" for zygotes cruelly subverts the very idea of a culture of life and potentially criminalizes every pregnant woman. Are you really cool with that? Even if you personally would not chose an abortion?