Thank your for your reference to the Alien Friends Act of 1798 which are referenced in the excerpts that I had provided.
Given that James Madison is generally regarded as the father of the Constitution, Madison very aware of all the discussions that took place at the Constitutional Convention since he famously recorded the discussions in his daily journal, I am satisfied with his statement that the power to regulate immigration is not one of the powers delegated by the states to the feds, expressly through the Constitution.
After all, theres been nothing stopping the states from amending the Constitution to expressly grant the specific power to regulate immigration to Congress, an action which, based on Madisons and Jeffersons writings has never been done, such power therefore uniquely remaining as 10th Amendment-protected state power.
No disagreement there my friend ( well, unless something turns up in the Federalist or Madison's notes ).
At this time I feel that the Founders indeed neglected to specifically enumerate "Immigration" as a power, however I wouldn't use the Tenth to let the States regulate immigration ever, and most importantly NOT to go after sanctuary cities legislation. It's not workable for previously stated reasons, and is doomed from the start due to national security. Ironically the FedGov has jeopardized national security by neglecting it themselves. No matter, the legislation eventually winds up in the Supreme Court for sure.
It is yet another area of limbo that will need to be addressed by a slate of Amendments.
You know, I just thought of a way to encourage self-deportation by using the leftwing scumbags own actions back on them. There are lots of real-world examples of federal supremacy over "Immigration" ...