The vast majority of farms are not in danger of urban sprawl. Farms near cities are but there is a lot of land not close.
Nice strawman, I never said that.
I'm talking about localized population trends, such as in parts of Appalachia. I've seen it even in my own lifetime with houses replacing what used to be fields.
The Seattle area is not rural, so I would not expect you to notice farmland converting into developments.