I'm pointing out that he shouldn't be expected to know the complete history of the American War on Some Drugs.
You can check my post history to see if I frequently reference someone's nationality in a context where it isn't directly relevant to the topic at hand. I await your report.
How is xenophobia part of having a responsible and informed dialogue. He dug through, found out the person is a different nationality and is not American. Then assumed they are not informed enough (in the best case) to make a valid argument. Which turned out to be wrong because they actually lived and worked in the area and other parts of the US.
I failed to see how this was an informed and responsible dialogue. I think we might have a different perception of those terms.
You can check my post history to see if I frequently reference someone's nationality in a context where it isn't directly relevant to the topic at hand. I await your report.