What we are, specifically, is partially brainwashed. And I mean that quite literally. A large number of people have been watching "Fox News," a fake "news" entertainment channel specifically designed to brainwash its viewers for literally their entire lives.
All the big news channels are propaganda and entertainment machines in their own way. A majority of voting Americans are hooked into all of that trash TV
Anecdote, his people didn't even watch the debate. If they did watch it, they watched some edited version the next day that only had his answers, basically an edited speech. Then they watched some talking go over all the worst bits of what Harris said and did. Then they read about how the moderators were unfair to Trump, and how Harris must have been given the questions ahead of time. I know multiple people that did exactly this, it's all quite insufferable. Based on the way they talk, it wouldn't surprise me if some people watched it live and just muted the TV when Harris was talking, because they can't stand hearing her.