You are just wrong. Everyone who has dealings with the Amish respect them immensely. I don't believe the Jews consider themselves any more insular than, say, the Presbyterians, either.
Actually, from reports coming out now, it looks like Physicist was right - see post 491.
That's just not true. I'm Pres and we don't consider ourselves as the least bit insular. Jews live in the world, but are an exclusive community within it. The Amish, of whom I have much respect, are extremely insular. They want it that way and have paid the price genetically. They are wonderful people.