I share your concern for his safety. I've been following his campaign on the net and the debates on youtube etc.
His ideas are as old as your federal constitution. Those ideas were definitely very radical when they were thought up by the radicals (the British would have called them terrorists) who became the founding fathers of your nation.
I hope his message gets more listeners because from where I'm sitting your personal freedoms, constitution and Bill of Rights are being systematically ignored, abrogated or abolished by the people you trust to run your government.
It's like watching an injured animal suffer. Heartbreaking really.