[CottonBall]

Meanwhile, outfits like Amazon brought this on themselves by blatantly flaunting the law: they have regional warehouses throughout the country from which they ship, but pretend they don't need to collect taxes for sales in the states where they're located.

A warehouse doesn't count, it's a retail store that does. Amazon et. al., hasn't flaunted anything.

[cizinec]

“A warehouse doesn’t count, it’s a retail store that does. Amazon et. al., hasn’t flaunted anything.”

That’s simply not true.

Look up Complete Auto Transit.

1. Does the seller have a physical presence?
Yes.
2. Is the tax fairly apportioned?
Probably.
3. Is the tax facially discriminatory?
Probably not.
4. Is the tax fairly related to services provided by the state?
If the warehouse catches on fire, the police and fire department will probably show up.

If you’ve got a warehouse in a state, you make a sale into that state, and that state has a sales tax, you best be collecting or they will lock the warehouse doors.