Are Americans losing faith in democracy?

As your link says, "Betteridge's law of headlines is not always true."

The evidence presented seems persuasive, though of course it could be cherry picked from a small number of polls which go one way when most polls go the other way. I don't have the background to judge.

However, with the increasing call to 'run a government like a business', which includes the rise of charter schools outside of democratic control, I see no compelling reason to disagree with the thesis.

Why do you think it's incorrect, other than the construction of the headline as a question?