Maybe these traits are specific to Christian homeschoolers and not homeschoolers in general, but frankly I have never met someone who was homeschooled because of secular, rather than religious reasons.
These last two years have changed my perspective. While the vast majority of people were bathing in hand sanitizer, hoarding toilet paper, locking themselves away in quarantine, and avoiding elevator buttons, the people who were least in tune with popular culture (Religious, rural, etc.) seemed like the most rational actors. In my opinion turning off the TV and ignoring mass media, sports, culture is probably the most healthy thing a person could do.
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.