As someone smart and technical enough to hang out on HN, if your argument for dropping out of the political process boils down to “I can’t be bothered to understand how my country’s electoral system works”, that’s pretty weak.
Whether or not your city closes/opens drug/alcohol treatment centers or homeless shelters will affect your life much more than Trump boasting about how he's going to build a wall.
Heck, the town supervisor from my hometown lived on the street right behind us. Growing up, it would be possible to hop across the fence in the backyard and be in his yard. Talk about access to your representatives.
Too much emphasis is being placed on the federal govt., which I believe is a terrible trend for all of us Americans. Trump made a huge wave of anger after withdrawing from the Paris Agreement, but there is nothing stopping my home state from making their own ad-hoc agreement (of course, states do not have authority to engage in international diplomacy, but I'm speaking about the principle of, say, NYS committing itself to a zero-carbon emission pledge within XX years, and setting goals for all the towns and cities to help contribute).
Even without considering the lives lost, both American and foreign: The Afghan & Irak war have cost $5 trillion over the years. That's $60,000 for every US family of four that could have been put to other uses if those wars had been limited to a fast and cheap campaign against the Taliban government.
Don't forget China holds elections, but that does not mean people's votes count.