I am greatly in favour of home schooling - but it needs dedicated parents and huge commitment.
I have always been of the opinion that school is a grossly abnormal environment. There are some children who love it and that is where they should be; but many children hate it and there is no reason to force them to fit into something that is not right for them. School is also now constrained by curriculum micromanagement (than you Gove) and the true meaning of education is something that teachers struggle to achieve under these circumstances. School is not a "preparation for life" because life does not resemble school in any way.
The bland assumption that school is right for all children is, I think, entirely wrong.
Badly executed home schooling is unacceptable; but so is trying to mould children into a school setting that is making them unhappy.
Home-schooled children are often articulate and curious, having mostly been schooled with flexibility and an emphasis on their interests and imagination. Most dedicated home schooling parents are in contact with others pursuing the same road, and their children get together for lots of socialising opportunities for PE, music, theatre visits etc.
There are lots of educational resources online and through organisations such as Education Otherwise, and GCSEs are pursued by many home-schooled children.
My DGS, not home schooled, hated school - hated every moment. A very bright boy, he left school with few bits of paper, but a determination to find his own way, which he has done. He is about to go to university in September to study a subject which he loves. Another DGC is on the autistic spectrum and has gender dysphoria - school has been unremitting torture.
I think we need to keep an open mind. Some schools are wonderful - like the small rural school where I am governor - some are grim. Some homeschooling is brilliant; some not so good. But to dismiss home schooling as being inadequate shows a lack of understanding of the commitment and dedication of many home schooling parents.