The federal government has no right in this matter. This is simply immoral. Time to nullify.
You know that's not a real argument, right? You can't just shout "Judicial activism! Time to Nullify!" every time there's a court decision you don't like. Unless you can point to either (1) a reason under the Constitution or federal law why the federal court should not have had jurisdiction over this case, or (2) A flaw in the legal reasoning of the judge's opinion, then you aren't actually articulating a response to the ruling.