This depends greatly on the time period in question, since for a long time it was Irish immigrants who were coming to the United States in great numbers, but yes, mostly it was German immigrants.
Martin Luther King targeted Birmingham, Alabama, for a civil rights campaign because it was considered the most segregated city in the South.
The answer is political speech
We as Americans are allowed to criticize our government without any punishment this plays into our freedom of speech (First Amendment). Other countries do not have this type of protection and we should be thankful to be able to criticize our own government without punishment or repercussions.
The election was won overwhelmingly by Aung San Suu Kyi. However, the government refused to honor the results of the election.