If Trump says he doesn't have to obey they law ... then nobody does.
That means blue states could stop subsidizing the red state parasites. Just turn off the gubmint cash, and watch the Trump cultists howl.
Remember, Trump cultists, you're the minority. Just a very loud one. People dislike you. You really don't want the rule of law to end, because that's what protects you from getting the treatment that you so richly deserve. If there's a purge, you're going to be the targets.
(It's not just conservative politics. People tend to be attracted to the Trump cult because they're such shitty human beings, which means they've pissed off a whole lot of people.)