Countless online comments and articles today are suggesting that in subsequent debates, the Moderator should have a mute button of some sort to cut off the microphone of a debater who goes over his time limit and/or keeps interrupting. That might be nice but, first of all, the rules of these debates are drawn up in advance and all parties must agree to abide by them. Trump would never agree to that if only because his ideal world is one in which the office holders can silence the reporters, not the other way around.
Secondly: If Chris Wallace had had such a button last night and had used it, Trump would have gone right on ranting and his voice would have been picked-up by Biden's microphone and Biden would have heard him and been just as distracted. They weren't that far apart. And of course, Trump would have also gone off on how the proceedings were rigged against him. He's incapable of not complaining he's being mistreated.
Okay, I get it. You want to see them in little glass booths like on a quiz show and the Moderator can turn their microphones on and off. Good luck getting Trump to agree to that.
I agree it was a shitshow but that's the point. Trump turns everything into a shitshow. He's like the blind guy who always wants to plunge the room into darkness because he's used to functioning in that situation and others aren't. If you're good at screaming and bullying, you always want to create that environment. It gives you home court advantage. I don't think it's a bad thing that the world saw that last night.