There are no illegal immigrants in America

[Happy Monkey]

Originally Posted by Radar

Slaves migrate...free people immigrate.

And free people, when immigrating (or emmigrating, or just moving around within a country), migrate.

Article 1, Section 9, Clause 1 refers ONLY to slaves. It discusses the migration or importation of slaves and the fact that the federal government may not prohibit slavery from the states that want to allow slaves to be imported or migrated into those states.

You have yet to do more than assert that. The closest you have come to even attempting to support that assertion required you to make up a rule that free people don't migrate. I defy you to find a definition of "migrate" that has that restriction.