Drawing the ire of the federal government. If their commander refuses, he’ll be removed and replaced with someone who will comply.

That commander is appointed by the CA governor, and I don’t see Newsom fighting the feds on this (or much of anything, really, so far it’s only been joint lawsuits against economic issues). Conceivably, Trump could argue that when federalized, he could remove the commander himself and appoint an interim commander, or just leave it unfilled and have DoD control them directly.