The other issue though is the USDA. Because I cant find in my version of the constitution where it is written that the feds have control over meatpacking plants.
As a matter of fact, I do see the Constitution saying very clearly that the feds have no control over meatpacking plants.
“The power over meatpacking plants are not delegated to the United States by the Constitution, nor prohibited by it to the States, therefore, the power over meatpacking plants are reserved to the States respectively, or to the people.”
Amendment 10
If you want such federal agencies to be unconstitutional, you should support an Article V Convention (a.k.a., Convention of the States). While the Constitution should never have been interpreted to allow the federal government such broad powers. Nonetheless, the damage is done and so amendment(s) will have to adopted if we are to put the feds back in their proper place; Congress will not vote for any such amendment. An Article V Convention is the only way.
The Supreme Court couldn’t find it either.
"From the accepted doctrine that the United States is a government of delegated powers, it follows that those not expressly granted, or reasonably to be implied from such as are conferred, are reserved to the states, or to the people. To forestall any suggestion to the contrary, the Tenth Amendment was adopted. The same proposition, otherwise stated, is that powers not granted are prohibited. None to regulate agricultural production is given, and therefore legislation by Congress for that purpose is forbidden [emphasis added]." —United States v. Butler, 1936.