If you heard the first Presidential debate, I assume you came to the conclusion that it was a mess and you learned very little about the issues. At least, this was my conclusion. Too many blame both candidates for this situation. I disagree and this position reminds of the “there are very good people on both sides” argument. In a contentious situation with an audience invested in one candidate or the other, it would be unreasonable to expect Biden to abide by the rules and not engage with Trump. Trump continually makes the argument that Biden is weak and offers this message to his followers. Should Biden have been passive in reaction to Trump’s continual intrusions into Biden’s speaking time the analysis would have been that he was too passive and unable to stand up to a bully. Trump clearly could not handle several of the questions and had a strategy of trying to bully Biden and be seen as the more powerful candidate. Biden did enough to defend himself and did his best to actually argue his positions. The only useful and separate comments came at the end when they were asked whether they would accept the results of the election.
Perhaps the second “town hall” debate will be more civil. If not, I see no advantage to Biden in continuing. He is already leading and to continue to engage in creating more noise is not the most effective way to argue his case.