> It's rarely down to one judge in one county though, most are entered pending appeal and the appeals court can immediately put the injunction on hold or in cases like this the first injunction might come from a circuit court who's far from one judge, by the time it gets to a circuit it's gone through multiple judges and some cases are heard by a bank of judged instead of just one.
When the circuit court rules the ruling is binding on that whole circuit, which is a pretty huge area and population (bigger than most countries). When one judge in one county rules the ruling is binding in that county, when the supreme court rules it's binding on the whole country. Isn't that kind of how it should work?
Rights violations because of federal laws or actions are almost never contained to a particular circuit and if the Supreme Court wants to quietly allow them to continue it can refuse to hear appeal(s) from the circuit decision so without nationwide injunctions the only way to relatively quickly vindicate people's rights is to file 11 cases one in each circuit wasting tons of time and money when it can easily be decided by a singular case.