So why not run on that platform? "Hey, America, I'm the SPY President! Vote for me and have all your emails read by caring government professionals who keep you safe!" Instead of being the "Hope and Change" candidate, Obama could have been an advocate for "Snoop and Chains!"
Obama didn't run on that platform, of course, because he would have lost the election if he admitted the things he really supports: secret military prisons and illegal torture, secret kill lists of American citizens, unarmed drone strikes on women and children, the continued criminalization of pot and industrial hemp, the continued Big Pharma monopoly over medicine, the DHS arming against the American people, and of course the over-the-top NSA surveillance machine that listens to all your phone calls and reads all your emails.