> I wouldn't say the homeschooled people I have encountered were "stunted" but definitely "different enough to not gel smoothly with the rest of society."

IME, the homeschooled people raised by people (homeschooled or not) to whom that description does not apply also do not tend to fit it, but people to whom (again, homeschooled themselves or not) that description does apply are overrepresented among those choosing homeschooling for their kids.