No. It isn't. That is just your definition and has no place in the morass of business law.
State sales taxes are not a Federal issue and do not, cannot, extend beyond the States area of power which is their State line. Why you think this is Federal protectionism is beyond the ken of mortal man.
That you think States should have their taxing power extend into other States is also absurd and completely anti-free market. Taxes themselves are anti-free market. That you clamor for more taxation shows up YOU to be anti-free market despite your idiotic, mouth breathing assertions otherwise.
ROFL!!!
Bump.