The Supreme court judges have been writing law, as opposed to interpreting it, for decades. The political parties game the system, a judge in failing health, has them salivating, when in a position to appoint. I've seen some very questionable rulings lately, that have to be (IMO) just following party lines. the problem is; they an oath to uphold the constitution.
Mainly; that the original intent of sales tax was to put the burden of maintaining the town / states infrastructure on those who used it. So the streets, cops, etc were at least partially paid for by the people out using them. The California shoppers in this example, aren't using any of that, except perhaps if delivery is other than USPS who come to every house every day, then they might cause .01% of the burden they would impose on the shopping district compared to actually going out shopping.
I'd be more enthusiastic if not for my experience with local government. Ours are quite corrupt, occasionally, we manage to elect a good honest person. Within 6 months to a year, they are as nearly as bad as the previous ones. I don't think this is perception, I've known a couple before they were candidates, & couldn't believe how they were voting a year after election. Apparently $$ is one hell of a drug.
Worse yet it is flagging them as a place good software goes to die. The reader wasn't if I remember correctly developed in house, but was bought from the developer. they messed with it and made it slightly worse, in the name of all change is good change, now are abandoning it,
Like every other move that attempts to screw down the internet, it would be mapped around directly. Introducing word messages now with out pop or smtp. I'm just saying it is unenforceable in the way that the information exchange is a moving target. The reason Email and IRC have survived relatively unchanged, is due to lack of natural enemies.