dude, which part in your brain is so incredibly confused? When it comes to decisions by elected representatives they do not have to ask each person or call in a referendum for each decision they make. They may take into account public opinion, polls, questionnaires, but by no means are they forced to go with some majority opinion in a specific poll. Which part is so incredibly unclear to you mate?
I understand you are against the removal of the confederate flat and you wanted to have all peoples' opinions reflected in the decision. Well, tough luck, next time you can put yourself up for election and do as you desire if anyone votes for you.