There are plenty of kids in public schools with and creating social problems. There are plenty of kids who "graduate" while being functionally illiterate.

So yes it is a concern, but it is a concern for kids in general and acting like it is a problem for homeschoolers would be like telling kids that "growing up to be stupid is a risk for red head children." It is either being done with intent to bully red heads or just based on ignorance..

These are not valid comparisons. The concern is lack of socialization not behavior of some selectively chosen public school kids.

With your selection, it is inherently showing a disgusting bias.

Disgusting bias? I'm just saying that most of the concerns people unfamiliar with homeschooling usually raise are risks inherent in childhood in general.