To start with, understand that AOC is just the currently most visible, incessantly vocal, and most publicly hubristic example of what is inherently wrong with our domestic enemies, the Left and their non-White Coat-Tail Riders. They’re all like this. They always have been. And they always will be.
These sorts have always held and stridently preached that the truth is secondary to- and must be, at best, forcibly held in subordination to their and their chosen ones’ narratives.
In sad truth, they’re not only morally ignorant, their morality is based upon deliberate ignorance and rejection of the truth and any and all facts that evidence that truth. And, that means you can no more successfully argue with them than you can with any other religious fanatic.