Washington warned us of this threat.
The media makes sure to qualify any candidate threatening the interests of capital as a "dangerous extremist", while "pro-business" candidates receive the lion share of donations for their campaigns. And there are many other guardrails in place to ensure nothing impedes the slow erosion of our infrastructure and public services under the strains of austerity in profit of the few.
The key problem is that most people don't want to pay attention to any of it because it's either depressing or just not within there range of interests. Add to that the fact that most people vote based on their emotions and those are stupid simple to manipulate on the Right: anger at immigrants and "others" works all the time.
Democracy is the least worst option, but FFS, it would be nice if the electorate were actually properly informed when they vote.
Edit: I kind of contradicted myself on the "choice" thing, but this is effectively like herding cats.
My armchair assessment of the the electoral trap we're in:
* first-past-the-post voting
* dark money (money is not speech, it is power)
* campaign finance reform (current model is legalized bribery)
* eliminate the electoral college (popular vote for president)