True. Criminal law is the province of the States except on Federal reservations and in DC. And it does NOT provide that the states must allow and promote the murder of some particular class of persons.
Nor does the Constitution forbid it, either, which means that it is a power left to the States, or the People, respectively.
Every state has always had its own definitions for the permissible use of deadly force, and for determining when a person is no longer alive. Until 1974, every state also had its own definition of when a person began his life. That is the correct Constitutional position. Under our system, there is no other sensible legal entity with the authority to make that definition.
Claiming that the Federal Government has jurisdiction over forbidding abortions is every bit as ridiculous as claiming it has jurisdiction over permitting them.
It doesn't. It never did. The reasoning in Griswold v. Connecticut, is laughable and anti-Constitutional, and it is what made Roe inevitable.