I hope the Armish are saving their race.
This is something you need to check out.
I found this interesting. I presume the mixing or races might have something to do with this there are also other factors.
A 2002 study found the prevalence of blue eye color among Caucasians in the United States to be 33.8 percent for those born from 1936 through 1951 compared with 57.4 percent for those born from 1899 through 1905..
Blue eyes have become increasingly rare among American children with only 1 out of every 6 to 16.6 percent which is 49.8 million out of 300 million (22.4% of white Americans of the total United States population having blue eye: have plunge in the past few decades has taken place at a remarkable rate.
A century ago, 80 percent of people married within their ethnic group.
Blue eyes, a genetically recessive trait, were routinely passed down, especially among people of Scottish, English, Irish, Western and Northern Slavic, and Northern European ancestry. In the 1930s, eugenicists used the disappearance of blue eyes as a rallying cry to support immigration restrictions. They went so far as to map the parts of the country with the highest and lowest percentage of blue-eyed people.
America is on the wrong track. Another type of Global warming. Something you may not be able to undo when or if left too late.