Abortion was illegal in every state by the early 20th C.
The Declaration of Independence is incompatible with slavery, but the process of getting rid of slavery was lengthy. I.e., they “forgot” to get rid of slavery for more than 80 years. That fact does not detract from the truths enunciated in the Declaration.
The Fourteenth Amendment, as written, prohibits the states from marking out some segment of the population, and legalizing the murder of those people.
Why wasn't it made illegal in every state immediately upon ratification of the 14th, like slavery?