I'm interested in seeing these polls too btw, since a pretty stringent personhood amendment got about 40% in Mississippi a while back if memory serves, and the public in deep ruby non-Atlas red part of the country has only gotten more strident on (most) culture war issues since then.
I think that amendment vote should be considered in the context of the siloing of the issue; it got support (and opposition) because it was another DO SOMETHING pro-life state level tinkering effort. IIRC polling was suggesting it could pass. If it can only get 40% in the same midterm that passed the obvious dogwhistle requirement for 'voter ID' in a state like Mississippi, I don't think it'll pass in most places. Even today.
There's little polling on personhood amendments that I can find probably because it's not the salient issue at the moment.
YouGov did ask recently whether or not a woman who has an abortion should be charged with murder, which I suppose would be a prelude to pushing for a personhood amendment to allow for prosecution.
It's 49 to 23 in favour with those who identify as Pro-Life and is the most popular opinion held by Trump voters. So it's probably not enough to make it onto the books.
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The same poll did compare pro-life views to equal marriage views polling on which has been lacking. 83% of pro-choice respondents support equal marriage nationwide, 8% , 'leave to the states' and 6% supported a nationwide ban. 16% of pro-life respondents supported equal marriage nationwide, 38% to the states and 40% supported a nationwide ban. So the two issues seem to be tracking each other. Whether they always did is something that has been underpolled.
They also polled on other national, I guess rights/constitutional issues.
Nationwide abortion ban- Pro-Life 40% v 3% Pro-Choice
Nationwide abortion legal- Pro-Life 7% v 84% Pro-Choice
Nationwide assault weapon ban- Pro-Life 22% v 62% Pro-Choice
Nationwide assault weapons legal- Pro-Life 35% v 15% Pro-Choice
Nationwide marijuana ban- Pro-Life 32% v 7% Pro-Choice
Nationwide marijuana legal- Pro-Life 20% v 77% Pro-Choice
Nationwide prostitution ban- Pro-Life 46% v 15% Pro-Choice
Nationwide prostitution legal- Pro-Life 9% v 47% Pro-Choice
Nationwide physician assisted suicide ban- Pro-Life 47% v 9% Pro-Choice
Nationwide physician assisted suicide legal- Pro-Life 9% v 62% Pro-Choice
Pro-Choice respondents were strongly in favour of nationwide legalisation and pro-choice voters strongly against in everything polled. Automatic weapons being the exception for both.
Pro-Life respondents do however break towards 'States rights' on a number of issues, with abortion itself being the most 'left to the states' issue. Which given their political strategy at a state by state level makes some sense.
The take away from this is that traditional political Pro-Life is very closely linked to traditional conservative, states rights Republicanism. Trumpist/populist inspired 'turbocharged' absolutism might not be as popular amongst that base as assumed (and only fire up the other side). At least initially.
That's assuming in good faith that pro-life issue voters won't eventually be subsumed within the Trumpian rhetorical leviathan of 'winning and triggering and owning' and start to go along with it.
