The problem is largely the democratic system itself. The average U.S. Senator spends 2/3 of their time fundraising during the last 2 years of their term. Half of Congress are millionaires, their salaries are in the 95th percentile ($174k/yr), and they receive world-class healthcare. The electoral college means Trump and Bush get elected despite losing the popular vote. We're limited to a two-party system because third-party votes count for nothing, limiting the spectrum of ideas. American satisfaction with their own government is ~34%.
What pisses me off more the problems themselves in our society (terrible healthcare system that ties healthcare to employment, outrageous university tuition + student debt crisis, homeless crisis) is the fact that we all know and agree these are problems, have known for decades, yet do nothing about it. 9 of the 10 warmest years in history have occurred since 2005, yet we do little to nothing about climate change. Epidemiologists and public health experts saw the coronavirus pandemic coming in January, yet it takes the crisis actually hitting us to start acting. We get some fiscal stimulus, but the people get relative scraps while most of it goes to wealthy corporations. I still don't even know if I qualify for the COVID checks because the government website tells me "Payment Status Not Available".
For example take tax filing. In most countries, filing taxes is effortless and takes about 2 seconds - log into a government website, verify that the information the government already has on you is correct, and submit. But in the U.S., citizens are forced to waste time manually filling out all these tax forms and pay private companies money (eg. TurboTax, now there is e-filing, but ). It doesn't matter if you're Democrat, Republican, or a member of the Nazi Party, we can all agree that making tax filing take as little time and effort as possible is superior to having to take more time and effort. Yet in 2020 I still have to pay TurboTax to help file my taxes because the U.S. government is too incompetent to make it as easy as countries like Sweden, South Korea, etc.
We can definitely improve things significantly by electing better politicians, but that can only go so far within the confines of our current money-driven two-party system. We need a system that more accurately reflects the will of the people. Rank-based voting would enable third parties, liquid democracy would enable citizens to vote directly on issues without having to be beholden to elected officials. Experts should be in charge of their domains of expertise, specially when it comes to science (eg. public health experts in charge of public health policy). Politicians can decide what gets taxed, who gets the money, and vote on laws, but beyond that we need competent people managing what they're competent at, and a system that's proactive rather than reactive.
Too bad it's taboo to even suggest that a system of government devised over 200 years ago when people were riding around on horses may not be the most efficient in the 21st century.
EDIT: Rather than simply downvoting because you disagree (which is not what the downvote tool is designed for by the way), how about taking a second to explain what you disagree with?