While civil disobedience etc. are useful forms of protest, we haven't exhausted other avenues, like actually showing up to vote. And the parent post is talking about violence, not just civil disobedience.

The act you describe at the end of your post happened in a dictatorship where the people truly had no voice. While we may live in a flawed democracy[1] we're not in the same situation -- we do still have nonviolent ways we can turn things around.

1: https://en.wikipedia.org/wiki/Democracy_Index