So "magical thinking" explains why they believe this stuff in the first place, but what explains why they keep believing it after it doesn't work? Even in a fantasy setting, it doesn't make sense. If you thought vampires couldn't come into your house uninvited but then a vampire did exactly that, you'd run away. These people would lecture the vampire about what his weaknesses really were and then go online and complain that the vampire sucked their blood when he wasn't supposed to.
It more or less starts with the mostly true belief that everything is contracts as far as the government is concerned. Then they apply the faulty logic that they can unilaterally withdraw from any contract they feel like. From there everything more or less follows a predictable pattern that they can pick and choose contracts to follow at their discretion.
As far as I understand, when it doesn’t work for them they just double down, and assume they did something wrong in their arcane incantation of the magic law words, like they didn’t write their name in all caps or they invoked wrote down the wrong spell random legalese phrase.
"I am filming everything! Now, NOW I'm turning into a creature of the shadows, ok? I don't have a treaty with you, Nosferatu. Call our lawyer!"
Crying wife: "Which one?"