AOC debating her would be like a physicist trying to debate quantum mechanics to a gerbil. I mean sure, the physicist is smarter, knows what they are talking about more, and has a dramatically higher chance of actually being right, but in the end does that really matter? It's even more so when half the people that will watch the debate are pretty much gerbils themselves and have no idea what they are listening to and have no desire to actually learn about factual reality. Debates only ever really work when the audience is very factually knowledgeable about what is debated.
Without a panel of experts in a subject proportional to the amount of consensus those experts have in that subject declaring who is right it just leads to a False Balance Logical Fallacy, and can even become dangerous because of the amount people hearing the debate that will assume they both had good points just because for no other reason than they both had words come out of their mouths at some point. There is hardly ever neutral competent intelligent fact checkers in these type of things either just making the situation worse. You can't have a real debate when one side can invent their own subjective reality with no consequence during it.
It's why at a certain point one has to stop debating people like Flat Earth people, human caused global warming deniers, conspiracy theorist, or other similar people for example. Unless all the people that hear the debate are going to consult the world's experts on that subject, go with the overwhelming preponderance of evidence those experts have, and actually listen to people that know the most, (spoiler alert, they very often don't) it gives nutcases a platform and a false sense of legitimacy they should never have. It gives the illusion that both debaters are operating on an equal level of legitimacy. They aren't.
Facing this reality of this might piss some off, but one person's ignorance isn't as valid as another's knowledge. One person's feelings aren't as valid as another person's facts. Even everybody's opinion isn't equally valid depending on the actual knowledge they have over what they are talking about.