The Commerce Clause issue is a genuine one. Just as there’s no Commerce Clause ground for homicide statutes generally, there’s no Commerce Clause ground for federal anti-abortion statutes. There’s may be a 14th Amendment ground for a federal anti-abortion statute - as a deprivation of life without due process - but only in the minority of cases in which the state itself is implicated in the abortion (e.g., administered by government doctors in a government hospital).
To be wary of federal anti-abortion statutes is not to be pro-abortion, any more than those wary of federal anti-rape and federal anti-homicide statutes are advocates of rape and murder.
The supreme law of the land absolutely requires the states to provide equal protection for the individual God-given, unalienable right to life.
The Commerce Clause is no longer a limit on federal government after the Supreme Court Obamacare decision. In other words, even though Congress might not have the power to regulate abortion directly, they could always impose a million dollar penalty tax that would have to be paid if you wanted one.
Not disagreeing with you, just pointing out there is no longer any limit to federal government power.