Well, then you must agree with Blackmun that the child in utero is not a person.
Because, if, as science has proved beyond any shadow of doubt, the fetus is a person, they are explicitly protected by our existing Constitution, whether you like it or not.
It doesn't matter what I believe or what you believe. It matters what the USSC says the Constitution says. And there is absolutely zero Constitutional jurisprudence that I am aware of that recognizes a person prior to birth.
There are MANY state laws that do so.
But, from what I can discern you would oppose a candidate that would appoint judges that would overturn Roe on 10th Amendment grounds because they would not appoint judges that would overturn Roe on 14th Amendment grounds as they could apply to an unborn child...even though there is no precedent for same.
I call that cutting off your nose to spite your face.