The Constitution articulates precisely what the Federal Government may do.
The Bill of Rights articulates absolute restrictions, those things FedGov may not do.
You’ll notice I use the word may, not can.
There is an abyss between what one may do and what one can do. Can is a matter of power, and the will to violate.
Jefferson: “We … disavow and declare to be most false and unfounded, the doctrine that the compact, in authorizing its federal branch to lay and collect taxes, duties, imposts and excises to pay the debts and provide for the common defence and general welfare of the United States, has given them thereby a power to do whatever they may think or pretend would promote the general welfare, which construction would make that, of itself, a complete government, without limitation of powers; but that the plain sense and obvious meaning were, that they might levy the taxes necessary to provide for the general welfare by the various acts of power therein specified and delegated to them, and by no others.”
Most answers to our problems can be found in the writings of Jefferson, and the study of RevWarOne.