I don't know why it's necessary to overstate the case so radically. If you look at scientific and technical universities like Purdue, MIT, University of CA at Berkeley, etc. you see that the vast majority of their students come from public schools. The vast majority of National Merit Scholars, national Science Fair winners, etc. come from public schools.
This obviously doesn't mean "all public schools are good" any more than Blumenfeld's essay means "all public schools are bad." What it does mean is that obviously *some* public schools are quite good in spite of all Blumenfeld says.
My view is that people should be entirely free to homeschool and not have their homeschooling regulated by the government. I believe basically the same thing about private schooling as well. But you don't see good private schools engaging in hyperbolic public school bashing, and I wonder why it's necessary for *some* homeschoolers to do it. It seems counterproductive.
If you look at scientific and technical universities like Purdue, MIT, University of CA at Berkeley, etc. you see that the vast majority of their students come from public schools. The vast majority of National Merit Scholars, national Science Fair winners, etc. come from public schools.
Of course they do, because most people in the country can't afford to send their kids to private school.