I've never encountered anyone who never questions authority and always supports the government, as far as I know. People tend to compartmentalize and rationalize, they'll accept authority about one thing but not another, they'll believe this but doubt that.
Have you ever reflected on the magnitude of American patriotism post-WW2, especially during wartime? Seems to be a major case of widespread, ideological and irrational pro-governmental belief.
What I've seen is that people question things if it serves them, but have lots of other priorities more important than critically thinking about everything they encounter