Voting is good. If you don't vote then you can't complain when your candidate doesn't win or the decisions made afterwards.

What if there isn't a candidate that I like? Shouldn't I have the right to complain all I want?

Sure you have the right, but I as a voter will discount your complaints and feel I don't have to hear them.

Funny. If I don't vote, I react the same way towards the people who elected these asshats.