There's such an aggressively apolitical movement in the US that anything that smells of being political - even the term "political" is so ridiculous, when you think about it. The worst part of governing, the political side, is the grossest part, so that's what they call it. So anything that reeks of that immediately gets tuned out by 70 percent of the population.
I grew up with a single mom who was a waitress. We were on food stamps. My mom then got Pell Grants, put herself through college to get a degree to get a better job. Because we were broke, I then had to go to a state school. I went to Temple University, and had to get loans. So I grew up in a world where I saw the government helping individuals pull themselves up, and saw it work very successfully.
The crush of lobbyists on Washington and purchase of the media by corporations has created a big business-run government and a worthless press leaving Americans screwed and ill-informed.
I think American culture had just become so disengaged from the process of government, and we'd been so fuzzed out by our pop culture around us, that I don't think people really saw this guy for what he was.