Dear Philipp:
Thank you for your response. Having a debate is a great idea. One of the article contributors had the same line of thought. I have my doubts. While it certainly would work in a regular and familiar situation, it might not be efficient while engaging with speakers who are professional propagandists, provocateurs, extremists or mentally unstable individuals. It is a general observation. The presidential debates last year is a good example. I do not have enough information to categorize the speaker in question.
Here is another account of this event, with more points of view: