Horseshit. "Traditional media curators" brainwashing people like you for decades is how Trump won the general elections. Maybe if you said the first primary. But you had to get in your jab at "liberal" media Fox News, the largest news network and epitome of mainstream media, has programmed you to.
Nope. Trump won because of people like you. People like you insisting that others had to be "brainwashed" by Fox or some other source for voting and choosing the way they do. As long as you guys act like assholes and scream that those other people are "brainwashed", you're only going to drive more people to them. Nobody under 30 watches Fox, and yet Gen Z is shifting to the Right. Now, you can find another shadowy conspiracy to account for this, or you can accept that maybe, just maybe, people vote the way they do because they want to, because they have their own sense of right and wrong and they follow it.
This is why I hate the whole "best interests" argument. "I just don't understand why these people vote against their interests". Well, that's because people that say this don't really give a shit about their interests. People decide what their own "best interests" are, thank you, and then vote for them. No one else gets a say on that process. What they really mean is "Fuck those people for not voting in MY preferences".