I have to disagree. You can’t reasonably debate someone whose arguments aren’t based in reality. Trump’s tactic since 2016 has been to use whatever platform that he’s been given to smear and denigrate his opponents at every opportunity and to lie about how all of the problems we face can be easily solved if only he were allowed to do it. When questioned on actual policy matters, he spouts complete nonsense that doesn’t hold up to scrutiny, but since it’s a fast paced debate he can make up bullshit and nobody will fact check him. Even if by some miracle the moderators do fact check him, he will turn to attack them and say they are politically biased against Trump, etc. etc.
It’s a zero-win situation. Trump will never lose points for bad behavior among his base, and he only stands to benefit from the increased exposure. Biden meanwhile can’t score a goal when the goalpoasts are motorized to move backwards at this point and only invites unnecessary risk of flubbing or tripping up, which will be played back on repeat on political talk shows to harm him.
I don’t disagree that he could totally beat him, but when the opposition is always playing a game of Texas Sharpshooter, Trump only stands to earn bullseyes while Biden is just wasting ammo.