[AZRepublican]

Federalism is concerned with individual liberty, not "state sovereignty" or "power."

That statement misses the mark. A better way of phrasing it would be federalism is concerned with the liberty of individuals to self-govern themselves, which makes "state sovereignty" very important because the States is where the "people" are found.

[robertpaulsen]

"federalism is concerned with the liberty of individuals to self-govern themselves"

Unless that self-governance interferes with interstate commerce that Congress is regulating. A private pilot flying from one part of the state to another is regulated by the FAA when his flying interferes with the interstate airline traffic that Congress is constitutionally regulating.

Unless you can argue that the federal government has no business regulating purely intrastate activities.

[AdamSelene235]

That statement misses the mark. A better way of phrasing it

I think the author of the Constitution knows the meaning of his own words.