the DNC would rather pull out of the race altogether than win with AOC.

Is this... are you... Are you serious?

This is a ridiculous equivalence on its face, and you should feel ridiculous for saying it. A debate does not have a "winner" beyond that which any number of biased observers, such as yourself, attempt to assert. This is not baseball.

The winners in any debate, if there must be any, are the people who use what they see and hear to inform their voting choices. What, exactly, do you perceive DJT to have said and done on that stage that will convince supposed "undecided" voters to vote for him? What do you perceive Biden to have said or done that would make them decide that Mr. Trump is the better choice?

As you said:

“Undecided” voters fall into two categories:

Trump voter: “Iah aint tellin’ YEW who IAHM a-votin’ FER!”

Undecided voter trying to choose between voting and not voting.

Nobody is undecided between the candidates.

Were you yourself undecided? Or perhaps planning to vote for Biden prior to the debate, but now will vote for Trump instead? Given your analysis of undecided voters, I fail to see how the debate would have motivated the non-voters to go out and vote for a President Trump.

What I saw, personally, was two very old men who have wildly different takes on ethics and the seriousness of the position. One of which has a lot of practice being on camera. Frankly, I wouldn't be surprised if Biden's performance at the debate was at least somewhat intentional, setting up a wonka-esque reversal for debate #2. Considering recency bias, along with the media's desperate need to turn everything into contentious clickbait, I think it would be a pretty brilliant tactic, even.

Of course, what do I know. I'm a moron. Much like your opinion, mine has very little value.