Well, I thought it was relevant because the debate really seems to center on the meaning of patriotism and respect for honored traditions and symbols, which according to this article (and I tend to agree) really started to diverge with the turmoil surrounding the VietNam war.
I can relate to this in a number of different ways. Probably the most stark example is when I went home on leave before shipping out to VietNam. My sister had become engaged to a long-haired hippie and they let me know that if her fiancee got his draft notice, they were heading to Canada. I honestly didn't think much about it at the time (I really believe that America is about free choice), but looking back on it I can see how communities quickly became split over this issue.
They're still married, live 35 miles away, their son is a veteran of the Coast Guard, now an electronics tech with the Forest Service, all staunch Republicans and church-goers. We differ greatly on beliefs and values, but thankfully get along great, respecting each other's viewpoints. I know not all families from that era have fared as well.
I believe that if we want to understand the present, and prepare for a better future, we need to acknowledge and learn from the past. The Vietnam war was a turning point for American society and I think in order to fix what is wrong today we need as a nation to reconcile ourselves with the past.
Anyway, maybe you're right. This isn't the place for such a discussion.