Bruno and shmuel are the protagonists because they are mostly mentioned in the story
It would depend because being loyal to your country benefits more people but being loyal to your friend is more special because obviously they are your friend, you have known them and like them. But again, it would depend on the situation.
In "Civil Disobedience," Thoreau championed the idea that if a government is not going to improve itself, then it is the duty of the people to refuse to support it. This paved the way for non-violent protests, such as those led by Gandhi and Martin Luther King, Jr.