Only in the (few) news stories you read about some sick family; I'm convinced those are hand-picked outliers to reinforce a narrative that homeschooling=bad.

There is no need for a family to be "sick" or not loving for homeschooling to end up being a little insular.

I grew up being home schooled while traveling the world. It definitely resulted in weaker social skills as I lacked long friendships. Making lasting friendships and maintaining relationships is a skill I had to learn later in life.