Racists, white nationalists, etc. are deplorable.
I wouldn't want them voting for me either.
It's cute that you think one word from Hillary cost her the election.
It's more that anything Hillary did or said was negativized and echoed and then picked up by the media. For instance, the private email server is really small potatoes, in terms of being president and running the country, but became a huge issue. You'd think 3 bankruptcies for a so-called successful businessman would be bigger news, but nobody cared. Or the fact that Trump really was ill-informed on a whole host of political issues.
The GOP has done a masterful job of manipulating the media the past couple decades, with a big assist from Fox and talk radio. The Left is arguably larger but more diffuse and really just doesn't have equivalent propaganda outlets (in terms of media, think tanks, Russia, etc)