I think that you also can think of a lot of other laws that do that.
The real issue here is that you are not assigning the value of human life to the unborn life in your query. You are also exempting a hostile, life taking act against another from the usual legal protections because it technically falls under the rubrick of a medical procedure.
Any act that deprives the life of another human being is subject to the law. One of the country's primary responsibilities is to protect the life of it's individuals, and just because that action is a "medical procedure" does not exempt it.
Furhter, abortion is unique from other medical procedures in that it involves a 3rd human being in the normally 2 party equation of a doctor and patient. And on top of that, the abortion procedure planned between two members of this 3 party interaction conspire to end the life of that 3rd member who has no ability to protect himself/herself.
Normally, medical procedures involve FOSTERING life. Abortion TAKES AWAY life...that is why so few doctors will do it - even when there are big bucks in it if you do. In fact, when I took my hippocratic oath, it specifically said that "I will not perform abortions". I took that oath, and I honor it.
The political types pushed med schools to change that when peoples actions no longer were fitting their oath. While an abortion certainly qualifies as a medical procedure in it's mechanics, it violates the very foundation of medicine which is to foster life.
(Aside - there can be exceptions such as If a pregnancy threatens the life of the mother, then an abortion would be life fostering to the mother when the alternative is that both the mother and baby die. In that very rare case, then the INTENT of the procedure is life affirming). Unfortunately, the pro abortion people realized a while ago that if they switched the words "life of the mother" with the words "health of the mother", they could use the loophole created to abort a pregnancy for any reason they wanted to list (tears shed can be called mental health, back aches can be called extreme discomfort, etc.). That is why you are seeing the specificity of "life of the mother" being included in states serious about shutting down abortion while "health of the mother" is strongly pushed by those wanting to widen abortion availability.