I am not from the US but it's the same thing everywhere.
The only place where citizens seem to have an impact is Switzerland where with enough signatures you can request a referendum. Good luck implementing that in other countries.
Somebody one day told me this little bit of wisdom:
In a dictatorship, the government wants you to shut the hell up but in a democracy they let you keep talking because they don't listen and do not give a single fuck about you.
The world's political systems are broken.
I for one do not bother to vote anymore and the cynicism transpires in my daily life where on many issues I find myself thinking that if nobody cares, why should I?
That's progress apparently.