And you are wrong about the Constitution not recording pre-born Life.
It certainly does.
We the People of the United States, in Order to form a more perfect Union, establish Justice, insure domestic Tranquility, provide for the common defence, promote the general Welfare, and secure the Blessings of Liberty to ourselves and our Posterity, do ordain and establish this Constitution for the United States of America.
Posterity = the UNBORN
And don't give me that stuff about the preamble not counting: it is the PURPOSE statement of the Constitution. Therefore, as it's PURPOSE STATEMENT, it cannot be interpreted in contradiction to that STATED PURPOSE.
It says that the UNBORN are INCLUDED!
There is no way around it: Abortion at its worst is premeditated murder, and at its best it is homicide.
First of all, the preamble creates no substantive, enforceable rights. Those are recognized only in the Bill of Rights and following Amendments.
Secondly, "procure blessings for our posterity" has in mind only the establishment of a civil order that will last for posterity. It is not intended to create any substantive rights.
Considering there has never, ever been a legal system that considered abortion either homicide or murder, this cannot be true. At most, you have early Christianity holding that it was immoral. Roe v. Wade is correct that at no time in our legal system was abortion considered homicide, even if it was immoral.
Great and profound sentence.
"...and secure the Blessings of Liberty to ourselves and our Posterity..."
Amen.
The Founding Fathers didn't just cook up this phrase out of thin air. It was a reflection of their Christianity. This statement is the intentional echo of the covenant family of Jesus Christ and the inherited blessings which flow from the Father to His children.