Vacuum's voting table shows that not voting doesn't help. An analogy would be if your store keeps getting robbed, you stop bothering to lock the door because it seems pointless. You're just making it easier for the criminals.

I understand your point about not voting. If you were only allowed to vote for either Democrat or Republican, I'd support not voting. But you can become part of the "other" vote, either via another party, or write-in.