It's not that I feel doing so is immoral or unethical. Instead, I've come to regard it as ineffectual and degrading. My pull, in this political process, is absolutely insignificant at the margin. I feel like I would be more effective in spending that time sharing ideas with people and simply talking to them. But beyond the measure of its utility, from a personal standpoint, there's something to be said about the difference between the nature of what people perceive is happening in that process and what actually is happening. To Johnny Everyman, democracy is the bulwark of freedom - the signal of liberty. To me, it's the consolidation of power, and the competition of various factions and classes to turn that power against their rivals. Even worse, the marginal insignificance of an individual's say arguably perverts incentives, lulling those individuals into a false sense of security and placing a heavy fog on the political battlefield on which those interests vie for power.
In short, the political process does not necessarily technically prevent more favorable politicians from being elected, but I would argue that it effectively moves the political goalposts. What once may have been a struggle about the breadth and depth of political power has turned into a struggle for that power in and of itself. The actions of government through a revolving door of politicians has resulted in a breathtaking amount of accumulated law and policy, turning what was once political ideology into nothing less than a fight over who gets to control the proverbial gun at any given moment. In short, I'm less than optimistic about the longterm effects of our system than most of my fellow Americans - I believe it has turned political focus onto content exclusively, the context of which (on the rare occasion it is brought up) is quickly dismissed as arcane or esoteric. We've lost the patience for deliberation. We've lost the civility for reason. And we've traded in our sense of ethics for existential relativism. It's not a pretty picture.
I can't help but be reminded of probably one of the most forthright and noble critiques of democracy that I've come across in my reading - and I will leave you with that short piece. This is a passage from Robert Nozick's Anarchy, State, and Utopia - it is the Tale of the Slave: