> People protest to affect political change in their own countries.
Hu? What about Palestine? Is it the US? People can protest about anything they want. Foreign policy or international intervention (in any form) are 2 of them. If people think they need their government to do something about a foreign country they can protest. And many times when people have double nationality they can also protest for their own country.
Protest is not only for political change in our own country. As much as people can protest for Palestine, people can also protest their own cause about what is happening in Iran.