Sorry, but no one 'listens' to the fact that there is a low or high voter turnout. Your not voting does not change anything in the democracy. Now, organzing, voting for a minor party, working actively for change-- that might get some attention. Staying home really says nothing. You'd have to get the numbers down to, say, a 25% turnout to make any statement and then what? Of course you don't have the obligation to vote. You have the right. And to stay home, too. Just don't delude yourself that non-participation is an impetus for change!