Data: White Americans seem fairly homogeneous (so far)

I recently showed that white Americans whose families are from east of the Hajnal line tend to be more clannish than those from west of the line.

In addition to the issue of clannishness, hbdchick also presented evidence that Western Europeans have a number of positive traits at higher levels than Eastern Europeans. Do these differences hold up in the US?

So far I've seen little evidence that they do. Their mean IQs are not different, nor are their chances of an arrest, nor their frequency of donating blood. The one difference I've detected so far is that W. Europeans are slightly less approving of cheating on their taxes--not even 1/5 of a standard deviation difference.

At least so far, American whites seem fairly homogeneous. European differences seem to have faded.