I'm sorry, the "Karen" drove onto your private road to interrogate your kid?
These things don't happen on a liberal/conservative axis in my experience.
I've lived all over the place, though not as much with kids, and have had none of these issues (including having mixed race kids who look much more like their other parent than me).
You really need to look at why you're living where you do.
A "private road" typically means one not maintained by the city. I live on one, but so do two other households, who have equal right to drive on it.