That means that making abortion a federal crime was not their intent when they wrote and ratified that amendment.
You are proposing to use the text of an amendment to transfer a power from the States to the federal government that the people who wrote and ratified that amendment did not intent for it to transfer.
Re-read the Fourteenth Amendment.
Enforcing the Fourteenth Amendment against a state that has legalized abortion would NOT make abortion a federal crime. What IS a “federal crime” under the Fourteenth Amendment is denying the equal protection of the laws to some people.
I.e., it is not ABORTION that is a federal crime; it is making abortion “legal” that is a violation of the Fourteenth Amendment.