All? Of course not. Have you any evidence that all Bush supporters think the Patriot Act is wonderful?
Democracy and republican government, when they have appeared, are sometimes overthrown suddenly and violently, as in 1917 Russia after a brief flirtation with parliamentary government. More often, though, they erode more slowly, with elected officials slowly changing the structure of government and slowly changing the way the citizens think about themselves in relation to the state.
Slowly the signs of nascient empire and the accompanying internal creep away from democracy appear. Not here yet, so keep your eyes open. "The price of liberty is eternal vigilence."