In this case the ruling is pretty dispositive. It’s pretty much purely a legal question and the judge found that the Plaintiff showed a substantial probability they would prevail on the merits, a requirement for a preliminary injunction. There’s really nothing left California can show that would change the Judge’s mind - the law’s not going to change.
“You might want to hold that thought until there is a permanent ruling instead of a temporary injunction.”
Expect a 7-2 ruling for Trump in SCOTUS.