Maybe a naive question, but what would the risk be for me to sign this? I wonder if I (a US citizen) might get trouble the next time at the border? Or get a higher score in some database, that combined with other things might get me into trouble? Increased scrutiny from the IRS (which should have nothing to do with this, but "they" might say hell why not?)? Inability to get security clearances in future? Being target…
As an US citizen, you don't have to fear, you have freedom of speech.
Otherwise it's hilarious, especially in this context.