You're doing a motte and bailey again. I, at least, don't object to some level of immigration enforcement.
What people do seem to object to, and what is unprecedented, is the aggression of enforcement, with roving packs of CBP officials going on snatch-and-grabs in random cities and detaining anyone who is latino-looking, including some citizens. That isn't how immigration law has been enforced over the past 5 decades. It's new. It wasn't policy under Bush or Obama or Biden or even under Trump the first time. The laws were not enforced like this since WWII.
The last time the Alien Enemies Act was invoked was during WWII. Its use this year was only lawful if you agree with the interpretation that certain Presidential determinations are wholly unreviewable by courts, an interpretation that so far, courts (including SCOTUS) have been unwilling to agree to.
There is significant controversy over whether much of this is even legal at all. And yet you seem to be of the opinion that state and local governments have some kind of responsibility to assist with actions they believe are illegal overreach. Because you're framing a lack of active participation as "nullification". You at least see why that's odd, right?