We are home educating.
I very much agree that very many children are receiving a poor standard of education at home, it depends on the parents.
There are many people choosing home education just because they are anti establishment and I am concerned for their children (some of the parents have a pretty poor level of literacy and can't articulate themselves very well).
There are also a lot of people for whom home education was a first choice (our family included). We make an effort to connect with other families who have chosen to home educate to offer their children a personalised learning experience, not just to stick two fingers up to society. It is a sacrifice in terms of earning potential, DH and I both reduced hours at work. We each have different academic strengths and also open to outsourcing as needed or being part of a co-op with other parents. DC have very many opportunities to socialise.
We don't do a version of school at home, but would like DC to work towards some qualifications later as a gateway to other opportunities.
I have met some families, particularly with SEN children who would have gladly sent their children to school if only the state would provide a decent setting and adjust to their needs. It's very sad that some families feel forced into home education, it is hard enough when you want to never mind when you feel your hand is forced.