I don't think you have any real evidence, you are just giving this knee jerk reaction to homeschoolers that everyone gives. What about the socialization, they won't be able to survive in "real" society. It is about time that the definition of "real" society was changed, and I think that homeschoolers are on the path to doing that.
And talk about not fitting in. My SIL's sister's husband is from the big city of Chicago; public school educated and all. He visited them for Thanksgiving one year and as soon as the meal was over, he suggested that they all go to the bar. He had no clue that there were families that actually wanted to stay home together, enjoy each other's company. But he was socialized.
I was homeschooled for twelve years, and am entering my junior year of college next fall.
If you read, I believe you'll find he was home schooled.
If I consider the tone and quality of his analysis and presentation, them I have to say you don't compare very well.