Charlie, your argument style in this conversation started insightful and tactfully expressed. It has become lax and contemptuous. While the contempt happens to be warranted by the context it nevertheless serves to give the casual reader a negative impression of what you are saying, can cede some of the 'high ground' to the person you are arguing with and potentially changes what arguments will be accepted.

I would very much appreciate it if you would quit while you are (or were) ahead. Your early points were excellent and I really don't want them to be undermined just because you are disgusted by the rebuttal attempts. They were what I would have said if I got there first (or so my hindsight tells me!)