I hear that. The harsh reality of, well, reality is that it is complex in nature. A vote every four or five years by necessity forces us to boil down incredibly complex, variable and nuances issues into a choice between at best 4 or 5 candidates, none of whom can possibly represent a totally 'correct' position.
We in Canada, and our neighbours to the South as well, are saddled with a political system designed long before the invention of the telephone. At the time it made sense to focus on regional representation and some kind of delegation - there was very little opportunity for a citizen of, say, Vancouver to have a direct say in policy decisions in the federal government otherwise. It made sense to assign a delegate, then hold that person accountable every so often and put someone else in their place. At the time the federal governments were small and barely involved in the lives of everyday people except at the macro level.
Now that structure makes no sense at all. But existing systems that manage to keep functioning despite obvious and growing flaws will keep functioning until they reach a point of crisis. This applies to a car, a human body, a computer, and any political or administrative system. There might be a rattle in my engine, but the car keeps working for a long time as the rattle gets worse - until something breaks and the car is now scrap. Until that point it is possible to keep moving, and maybe even for the driver to pretend there is no problem.
Similarly, our governmental systems are huge, complex, and full of rattling engine parts. Worse, there are people who benefit directly from the inefficiencies and malfunctions of our current government and systems, so do their best to protect that benefit. When things eventually break they will break in a big way, and the 'drivers' will lose all credibility. Sadly, many of us will suffer as well.
So we have a badly designed, inflexible system that, like all systems, benefits some at the expense of others. We have political agencies (parties) who have made a science of exploiting the system to their own benefit, some better than others. The griefers of the game of life. And eventually the griefers will break the system by gaming it too much - as in a badly griefed video game, everyone else eventually stops playing and it all falls apart. Until then, I will keep participating and trying to support those who seek to mitigate the damage - knowing all the while that the system is broken and will eventually suffer a catastrophic failure.