Wonder why the US is an outlier in this chart

[Igel]

108. I'd put Turkey as an outlier, too.

I'm not sure that the curve they use is the best. Would strengthen your case, of course, but it means not following the analysis but instead the data. Then the US has something in common with Turkey.

Then again, the US also has something very much in common with Japan. It and Japan are the only two non-European countries on the graph. One wonders what would happen if we added more countries. Interestingly, there's a nice cluster effect based on geographical and cultural affinity--some overlap, but the clusters look pretty convincing. In that case, the question would have to be, "Why is Japan more European in this regard than the US?"

That means asking additional questions of the data instead of assuming that the data are drop-out-of-the-sky unbiased and their purpose are somehow the reason for such numbers existing.