As I've said multiple times in this thread, it has nothing to do with the idea that votes somehow aren't fairly counted, it has to do with the simple math of it. The odds are so small that your vote will affect the outcome that it simply isn't worth your time from a mathematical/economic utility standpoint.
You would be just as well off using that time to go buy lottery tickets.
The value of voting isn't just changing who wins. It's supporting democracy as a whole.