Let's face it, voting is not the be all and end all. I recollect in the good old Commie days when we would see 99.9% of the voters turning out to vote for a single unopposed slate of candidates behind the Iron Curtain. I guess those voters were doing their civic duty.
Also many a dictatorship has had plebiscites where the voters turned out almost unanimously.
Sometimes, not voting, sends as large a message as voting.