Wasn’t the Guard sent to Korea first? (history lessons). Did all the states agree at that time? People say that in America the military wouldn’t fire on its own citizens - that was up until Kent State.
You’re confusing standard Title 10 activation of the Guard/Reserve over their usual Title 32 authorities/duties versus the FedGov telling those same Guard troops to strongarm their own fellow state citizens. Some will obey; most won’t.
Not sure why you think these guys are robots who only follow orders and that nothing else can factor into decisions.