I'm a US citizen, and I'm ashamed of what my government does in my name. I was born here: no choice in that matter. My taxes are used to fund horrid and despicable things in our collective name, including messing in others sovereign affairs, going to war, causing war between 2 different parties, and all the things wrong with "War on ____" (just add in the word representing the next 15 minute hot button issue).
I, as a citizen, do vote against politicians who either publicly have those views or have voted on those lines.. But what else can I do, other than emigrate? And that takes money, an advanced degree, and lots of luck to be accepted.