true, and not for the best.
I took notice when I saw a lot of older American movies(50s to late 60ies) and noted that eye color and "style" of the actors used to be pretty similar. Albeit a bit of a silly example it is maybe useful in a symbolic way, portraying the destruction of a part of the gene pool that America once had.(of course not all folks were great because they were European - lots of Euro scum went to the new world too).
I think the old guard in America were mainly Anglo Saxons which also used to look down upon the southern Euros.