then why US people cant vote a politician that would bring a betterment for their country??? like every other country?? we literally see an anti government pro

then why US people cant vote a politician that would bring a betterment for their country??? like every other country?? we literally see an anti government protest around the world in past few month from UK to Nepal to Australia because they got divided between left vs right political spectrum that ignore massive issue that is happening right now if there is a protest from other country, it labelled as anti government protest but if there are protest on US, it called an left/right protest