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.
To what end? Having read it, and knowing what the words are doesn't provide any context. Words have different meanings in different contexts. The context and intent determines exactly which meaning of the words was intended when they were written.
You want finding out what it meant to them to be irrelevant, so that you can replace that with what it means to you. That ass backwards. What it means to you is irrelevant. What's relevant is what it meant to them.
I.e., it is not ABORTION that is a federal crime; it is making abortion legal that is a violation of the Fourteenth Amendment.
When the Fourteenth Amendment was ratified, was abortion legal in any of the States that passed it?
When the Fourteenth Amendment was passed, abortion was legal in some states, and illegal in others. After it was ratified abortion continued to be illegal in some states, and legal in others, and it stayed that way until Roe v Wade.
You want me to believe that the people who wrote and ratified that amendment intended and understood that it required all the states to make abortion illegal, and then forgot to do it.