How stupid is it to have an answer "don't know/don't care" in a survey?
Anybody that doesn't respond doesn't care. The only people that could possibly respond with that answer are idiots.
Takes one to know one, doesn't it? Everybody doesn't read the polls, therefore, they wouldn't vote. Those that do have the right to vote as they please.
The people who vote "don't know/don't" care have as much right to their opinion as you do to yours. If you don't like that option being included in the survey, you have every right to ignore the survey.