Whatever you think of the original discussion, I want to share two lessons I learned, in the hopes they'll help someone: (1) never wrestle a pig. You both end up covered in mud and the pig likes it; and (2) if you're trying to teach or share, argue for the audience. If you try to level with the antagonistic person, people watching from outside will have a hard time differentiating you from them. If the response is not about helping others, well, my sarcastic side will advise you to argue as much as possible with strangers on the Internet. That's what life is for.