1. how did the HS2 project go in UK? anybody get punished? is it so clean that no corruption happens in this project even it spends so many money with very little progress?
2. Should someone be held responsible for Germany’s energy problems?
3. Sanae Takaichi is the prime minister of Japan with the highest vote share in recent years. Because of her poor foreign policy, Japan’s relations with South Korea, Russia, and China have all worsened, and her approval rating is now continuously declining.Should she be held responsible for these things? Or is it enough that she can simply be voted out next time?
4. Mongolia has the second-highest proportion of prostitutes in the world(#1 is Philippines, which has a simpilar system compare to USA) . Among the countries near Mongolia, it is considered by the media to be the most free and democratic. Why is Mongolia’s system unable to solve this problem? Or is this problem something that does not need to be solved? Does nobody need to be responsible for it?
It's unclear what any of this has to do with the implication in your GP comment that "democracy" and the "USofA system" were one and the same.
Flaws of the US system are not necessarily flaws in generic democracy, and may or may not be issues in other democracies.