It is, famously, a free country, and you can vote for anyone you like, or for no one. But if you do, don’t kid yourself — and certainly don’t try to kid anyone else — that you are creating some kind of positive political change. Noisily opting out as a way of demonstrating your pique is an understandable human act. It’s just not a political act. It’s an elaborate way of making the rest of us do the work of deciding.