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.
Benito Mussolini created the word 'fascism.' He defined it as 'the merging of the state and the corporation.' He also said a more accurate word would be 'corporatism.' This was the definition in Webster's up until 1987 when a corporation bought Webster's and changed it to exclude any mention of corporations.
Obamacare is a private mandate that will drive billions to the insurance industry, much like the auto insurance mandate. Hardly socialism. In fact, it was a Republican plan to begin with.