There is such a thing...
... as making your voice heard. Sure, you may lose in that state, but perhaps not by so much this time. And a bit less the next. In fact, if everyone felt as you do, we'd never know if the balance of power in Indiana ever tipped. The possible majority who would vote non-Republican would just stay at home, convinced that their vote wouldn't count.
Regards,
-scott anderson
"Welcome to Rivendell, Mr. Anderson..."