Voters vote for all types of reasons my dude. Some vote on promise and some vote on track record but the bottom line is that is how elected officials get put into office. By voting. Politicians do not just get born into political seats. So before you say anything negative about a politician take a look into how they got into their seat in the first place. No once you find out how they got into their seats ask yourself what you can do and what we can do to change that?
You ever notice how in sports when a team is doing bad the coach gets fired or players get traded or cut? Why? Because sports is a bottom line business and when business ain't booming and the people don't like the product the ones in positions of authority have to make decisions that usually coincide with what the people want. It's sort of like the people who most effect the bottom line (fans, investors, boosters) have a lot of influence on who gets put into influential positions. It's the same shit in politics. If the people don't actually exercise their right to be heard which is voting, then those in influential positions will not listen to them.
So vote.