Some of the failures can honestly be dealt with if there were proper coordination and oversight: Use an accredited program (for example). Require regular meetings with other students: Say, perhaps, PE at the school a couple times a week at an elementary level. Require parents to pass the tests for the coursework they are planning on teaching the next year or two. Include more variety on standardized tests: If you want to teach sex education or how to follow a recipe, include these sorts of questions on tests.
Until some sort of system is in place to catch the ones that don't really get taught anything other than propaganda, yes, I condemn the entire thing.
This is precisely why “homeschooling” is so dangerous.
It is also precisely WHY the majority of Americans who “homeschool” chose to do it. It is usually religious families, and they explicitly do it to isolate and “protect” their children from outside influences.
as always, the relevant question is "compared to what?". lots of american public school systems are still deeply segregated and produce astonishingly poor outcomes for their students. the part about being exposed to concepts parents disagree with is a good point, but certain homogeneous christian communities have had some success getting divine creation presented at least side-by-side with evolution (see "teach the controversy"). many public schools still give very watered down versions of slavery and dealings with native americans as well. the high school I went to (in an east coast city and not too long ago) only covered abstinence in sex ed. we were never taught about condoms or other contraceptives. the potential for propaganda in public schools is the same, just at scale. in a democratic system, it's hard to teach things that parents don't want. I guess the most extreme views probably cancel out a bit as you scale up the system, but this has the tradeoff of baking in the status quo even more thoroughly.
implemented correctly, I don't think oversight and coordination would be a bad idea (although if it worked, we might consider applying it to our public/private/charter schools as well). I don't agree that all homeschooling should be banned until such measures are in place.
