I'll give you that the Left does the same thing. I guess what I am saying is that I'm not convinced that getting angry or at least pretending to be angry/ hostile, insulting, smearing, etc., does cause people to lose real debates. Sometimes, it causes them to win the debate. Oh I'm not saying they won in some clinical objective evaluation but on the level of convincing the most people, especially the ones they want to convince.
If we are only talking about how many people that started with no opinion are swayed one way or the other, maybe.