I am so tired of the Central Government abusing the constitution. I love the Republic that our founders gave us, unfortunately I cannot see much of the Republic left.
Article I s.8 only gives the central government the right to create uniform rules of naturalization, meaning rules of becoming a citizen. This was added because under the articles of confederation every state had their own rules of becoming a citizen and all had to respect citizenship from all states.
Oh, the supremacy clause only applies to laws made pursuant to the Constitution. This means if the Federal Govt. makes a law that is not in line with the powers directly given to them in the Constitution by the states it is unlawful.
The Constitution does not live or breathe, it is carved in stone and we must go back to the original intent of those who debated and created it.