I don't think it's the place of any state to tell the Federal Government what to do.
The Constitution agrees.
I'll direct your attention to the supremacy clause.
The Constitution does not agree. All the Supremacy clause says is that, in a conflict between federal and state law, federal law made in pursuance of the Constitution wins. If the federal government passes a law that requires states to shoot people who engage in sodomy, and California chose to ignore that law because it argued that their constitution makes that illegal, California wins.
That is why you should never argue about law with someone who can think of absurdities, you will always loose.
As a lawyer, you should know better.
Actually, you're totally wrong. A state cannot unilaterally decide a Federal law is unconstitutional. Only the Federal Courts can do that.
If you knew law, you might know better.
No offense, of course.
If a FEDERAL Law IS at odds with the Constitution, it is not a law made in pursuance of the Constitution. It is void ab initio.
So, you can't validly say that he's entirely wrong.
In fact, he's right.
If the Federal law is UnConstitutional, it will be deemed a nullity. And if that would-be law is at odds with a State law, it would be improper for the State to ignore its own law in deference to a Federal NON-law.
And while I agree that a state doesn't ordinarily pass judgment on Federal laws, the question of constitutionality DOES come up in STATE cases, too. The STATE can pass judgment on the Constitutionality of a federal act, but subject to review by the Federal Courts whose pronouncements on the matter would be binding on the State.