For example, Afghanistan - decades of war, thousands of American lives, trillions of dollars - all for no clear purpose and whatever we did accomplish there seems to have been reversed in a weekend. The Taliban are still in charge of the country and there was never any accountability for the policy and military failures.
Trump is another example. I often feel like I've walked out of a theater after seeing a convoluted movie. I'm left asking things like "So, was Trump a Russian agent?" If our intelligence services thought he was, then their plan was just to run him down in the press for several years? If they didn't then the mainstream media was misrepresenting them for years?
Most major things fall into this category of "I can't believe our government could possibly be this bad." Climate change - we need green energy but also haven't approved a new nuclear reactor in decades. Infrastructure - it costs infinity billion dollars to build a train, and a new public restroom will take most of a decade. Economy - we're just going to create trillions and trillions of dollars at ever increasing rates and that will be fine somehow. Pandemic - almost too much to talk about stuff going wrong.
I could go on and on but the main thing is that the people in charge, the government and the media, seem incompetent to a degree that beggars belief. Why should I trust these people?