[Ken H]

The key word there is "the general welfare of the United States".

"United States" in the Constitution refers to the Federal government, not the People.

The Tenth Amendment, for example, says "The powers not granted to the United States by the Constitution, nor forbidden by it to the States, are reserved to the States respectively, or to the people."

[StACase]

Thank you for the civics lesson, I appreciate it :-)