To my 👎🏼 voter, if you want to live in a place where everyone is from the same background as yourself, have a look at the FLDS and offshoots, the super conservative Amish like Swartzentrubers, some Mennonite and Hutterites, the Haredi sects of Jєωs, and Pakistani Muslims, in England, especially!
Or look no farther than some of the “hollers” of Appalachia. In-breeding is not a good thing.
Like it or not, God created people to develop into various skin shades, hair colors and textures, and physiques. He instructed the Apostles to go and make Catholics of all of them. St. John saw all of these in Heaven, all Catholic, all seated around the Throne of Christ, all praising and worshipping Him.
Nobody in the vision is there (or not there) because of his skin color.
Why not seek out the county with the highest percentage of Traditional Catholics?
The stereotype of inbred, degenerate Appalachian "holler dwellers" (think
Deliverance) is wildly overblown. Many decent, honest, hardworking people live there, and I would know, because my mother, a woman of great intelligence and quiet dignity, grew up in one of those "hollers" (it's a dialect pronunciation of "hollow"). My grandmother raised eight children in that "holler" (they weren't Catholic), and while two of them fell into misfortune (as happens even in the "best" of families), six of them made very good lives for themselves, two of the sons became very wealthy through hard work, frugality, and shrewd investing. Some of the grandchildren, myself included, even went on to get master's degrees.
And as to the inbreeding, that, too is an exaggerated stereotype. Does it happen? No doubt. But it is far from the norm. By the time you get out to third cousins, not even canon law prohibits it, at that point it's no longer incest. People "up the hollers" would have sense enough to know who their close relatives are, and not to marry them.