All Democratic governments include a way to do exactly that - by definition. There's room for debate over how effective it actually is at removing underperformers compared to the free market, but saying it has no way to get rid of them is just untrue.
In a democratic government, you're not electing the central planners. In the american government, you're not electing any of the millions of three-letter agencies that rule your life. You hire a president, and he may or may not do something, who knows.
At least a market has some contact with a ground truth of bankruptcy. If there were several competing EPA's competing for money on the basis of their efficacy, that might be interesting.
You are either young and naive, or an idiot. Sorry, name calling is the only way to call out ignorance. Things simply don't work the way you think it does. In theory 'democracy' promises you a lot of things, but you get very little. Most democracies for most part are sophisticated form of oligarchy where the masses are essentially fed what to think, by propaganda, 'debates' etc.
Crossing into making an argument personal is especially not ok, and we have had to ask you about this before: https://news.ycombinator.com/item?id=21797575.
You are incorrect, when you start getting into nuances. When you have the govt doing central planning, there is no way to get rid of them when they under perform. When people voluntarily form central planning organizational structures, they are eliminated by the free market if they under perform.
The difference between communism/capitalism is fundamentally of philosophy not of structure. In the former it's coerced co-operation (which almost always results in central planning) and the in the latter it is voluntary co-operation( there will be many organizational structures and some may have a central planning)
How old are you? (no I didn't make a mistake when I asked you that question)