They're afraid!
I think the health insurance companies are actually taken by surprise by the amount of people who sincerely wish them death. Maybe we will see some almost-meaningful change soon?
I never understood how our country - proudly founded through the uprising of the downtrodden to overthrow their oppressor with violence - could ever honestly think that violence is never the answer. Our national anthem has a stanza specifically dedicated to the rockets and bombs "we the people" used against the British.