[realusername]

This is the perception of corruption, not the actual corruption. When it comes to the political system, the US is much more corrupt than most European countries. At least in France (since it's your example) you can't legally bribe politicians, it is not enforced a lot but at least it's illegal. In the US, financing of parties (so bribery) is the norm for the presidential election. And at least, minor parties have a representation in France, so there is a hope that the system can still change, in the US, since there is no way to have a representation of the small parties by design, only a revolution can make things change.