Then you don't understand what "unschooling is".
I do understand it very well as I have used it in the short term over the past decade, usually for a few days when one child is ill and needs my full attention but we have floor to ceiling bookshelves filled with a diverse array of books, microscopes, telescopes, pcs and educational materials for them to utilize and a bucolic setting for field studies when I pull them off schedule for an unschooling interlude. Most of my friends who have unschooled their children do it year round as a way of life and their national test scores, SATs and CATs etc., are very, very high compared to public school scores.
Some children do better with more structure and some do better with less. The beauty of home education is the ability to tailor it to the individual and the family.