Hard to believe this is still happening.
How Sovereign Citizens Helped Swindle $1 Billion From the Government They Disavow
As the Lavenders came to discover, sovereign fraudsters are the snake-oil salesmen of our time. Peddling a bouquet of grifts as varied as tax fraud and real estate scams, they prey on our suspicion of institutions, financial illiteracy, greed and despair. You don’t even have to buy into sovereign dogma to get swindled. You just need to be, as Ms. Lavender was, in debt. From 1990 to 2013, far-right extremists carried out more than 600 financial schemes that resulted in criminal charges...
Sovereigns, who sometimes call themselves “freemen” or “state citizens,” have no foundational document, but broadly they subscribe to an alternate version of American history. The tale can vary from sovereign to sovereign, but it goes roughly like this: At some point, a corporation secretly usurped the United States government, then went bankrupt and sought aid from international bankers. As collateral, the corporation offered the financiers … us. As sovereigns tell it, your birth certificate and Social Security card are not benign documents, but contracts that enslave you.
https://www.nytimes.com/2019/03/29/business/sovereign-citizens-financial-crime.html