This is very true. A lot of it comes down to chauvinism and, “we’re #1.” If an American sees a problem with the US government, then they’ll conclude that it is a problem inherent to all existing, or even all possible governments. When it does something bad, the worst thing people will say is, “This is like something you’d see in [rival country].” In this way, even while criticizing it, they still reaffirm their belief in their own superiority. And if you deviate from that and point out various ways in which the country is uniquely bad, it means you just knee-jerk hate everything about the country and want it to be bad. We are thoroughly cooked.