The Constitution was supposed to keep power on a short leash. Congress was supposed to declare war, control the purse strings, restrain the executive and answer to the people. The president was supposed to execute the laws, not rule by decree, wage undeclared wars, or serve as front man for an empire. The courts were supposed to serve as a check against government abuse, not rubber-stamp the national security state’s worst excesses.
Maybe living in a free country leads people to be trusting and friendly and living in a police state causes people to be suspicious and rude.
Americans used to be surprised Russians from the Soviet Union were unfriendly.
Now that the USA is also a police state, you might understand why.