They can’t admit it because it’s an echo chamber. Trump tells them what they want to hear. They feel smarter for being validated by the president so they ignore the nagging voice that things aren’t going to plan because the only possible explanation is NOT that they were wrong and don’t understand these complex issues, but that even though they can’t see the full picture, they were right. Then all the other people in the same position agree that 4D chess is being played and they all voted a smart vote and the endorphins flood their brain again