> Do I really need to have been born in the USA to be able to read published statistical data about the population?

I'm not disputing your ability to read. I'm pointing out that your conclusions were faulty. Was I wrong to assume that more knowledge might have helped you avoid the error?

> As I said, my intent was not to belittle, nor is it to "win" any kind of contest.

Then you should work on ensuring that your intent is reflected in what you write.

> The desire to be part of a winning team has turned the tide from reason and logic to emotion in modern discourse (and especially politics).

Projection....